Page last updated: 2024-10-24

cGMP catabolic process

Definition

Target type: biologicalprocess

The chemical reactions and pathways resulting in the breakdown of cyclic GMP, guanosine 3',5'-phosphate. [GOC:go_curators]

Proteins (7)

ProteinDefinitionTaxonomy
cGMP-specific 3',5'-cyclic phosphodiesteraseA cGMP-specific 3,5-cyclic phosphodiesterase that is encoded in the genome of cow. [OMA:Q28156, PRO:DNx]Bos taurus (cattle)
cGMP-dependent 3',5'-cyclic phosphodiesterase[no definition available]Bos taurus (cattle)
cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10AA cAMP and cAMP-inhibited cGMP 3,5-cyclic phosphodiesterase 10A that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9Y233]Homo sapiens (human)
Calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1AA dual specificity calcium/calmodulin-dependent 3,5-cyclic nucleotide phosphodiesterase 1A that is encoded in the genome of human. [PRO:DNx, UniProtKB:P54750]Homo sapiens (human)
High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9AA high affinity cGMP-specific 3,5-cyclic phosphodiesterase 9A that is encoded in the genome of human. [PRO:DNx, UniProtKB:O76083]Homo sapiens (human)
cGMP-specific 3',5'-cyclic phosphodiesteraseA cGMP-specific 3,5-cyclic phosphodiesterase that is encoded in the genome of human. [PRO:DNx, UniProtKB:O76074]Homo sapiens (human)
cGMP-dependent 3',5'-cyclic phosphodiesteraseA cGMP-dependent 3,5-cyclic phosphodiesterase that is encoded in the genome of human. [PRO:DNx, UniProtKB:O00408]Homo sapiens (human)

Compounds (102)

CompoundDefinitionClassesRoles
my 5445MY 5445: potential platelet aggregation inhibitorpyridazines;
ring assembly
theophyllinedimethylxanthineadenosine receptor antagonist;
anti-asthmatic drug;
anti-inflammatory agent;
bronchodilator agent;
drug metabolite;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
fungal metabolite;
human blood serum metabolite;
immunomodulator;
muscle relaxant;
vasodilator agent
celecoxiborganofluorine compound;
pyrazoles;
sulfonamide;
toluenes
cyclooxygenase 2 inhibitor;
geroprotector;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
cilostamidecilostamide: selective inhibitor of cyclic AMP phosphodiesterase & platelet aggregation; structurequinolines
cilostazollactam;
tetrazoles
anticoagulant;
bronchodilator agent;
EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor;
fibrin modulating drug;
neuroprotective agent;
platelet aggregation inhibitor;
vasodilator agent
cimetidinecimetidine : A member of the class of guanidines that consists of guanidine carrying a methyl substituent at position 1, a cyano group at position 2 and a 2-{[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl}ethyl group at position 3. It is a H2-receptor antagonist that inhibits the production of acid in stomach.

Cimetidine: A histamine congener, it competitively inhibits HISTAMINE binding to HISTAMINE H2 RECEPTORS. Cimetidine has a range of pharmacological actions. It inhibits GASTRIC ACID secretion, as well as PEPSIN and GASTRIN output.
aliphatic sulfide;
guanidines;
imidazoles;
nitrile
adjuvant;
analgesic;
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor
dipyridamoledipyridamole : A pyrimidopyrimidine that is 2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,6-diyldinitrilo)tetraethanol substituted by piperidin-1-yl groups at positions 4 and 8 respectively. A vasodilator agent, it inhibits the formation of blood clots.

Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752)
piperidines;
pyrimidopyrimidine;
tertiary amino compound;
tetrol
adenosine phosphodiesterase inhibitor;
EC 3.5.4.4 (adenosine deaminase) inhibitor;
platelet aggregation inhibitor;
vasodilator agent
donepezil2-[(1-benzylpiperidin-4-yl)methyl]-5,6-dimethoxyindan-1-one : A member of the class of indanones that is 5,6-dimethoxyindan-1-one which is substituted at position 2 by an (N-benzylpiperidin-4-yl)methyl group.

donepezil : A racemate comprising equimolar amounts of (R)- and (S)-donepezil. A centrally acting reversible acetylcholinesterase inhibitor, its main therapeutic use is in the treatment of Alzheimer's disease where it is used to increase cortical acetylcholine.

Donepezil: An indan and piperidine derivative that acts as a selective and reversible inhibitor of ACETYLCHOLINESTERASE. Donepezil is highly selective for the central nervous system and is used in the management of mild to moderate DEMENTIA in ALZHEIMER DISEASE.
aromatic ether;
indanones;
piperidines;
racemate
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
nootropic agent
9-(2-hydroxy-3-nonyl)adenine9-(2-hydroxy-3-nonyl)adenine: specific inhibitor of adenosine deaminase
etazolateetazolate : A pyrazolopyridine that is 1H-pyrazolo[3,4-b]pyridine which is substituted at positions 1, 4, and 5 by ethyl, 2-isopropylidenehydrazino, and ethoxycarbonyl groups, respectively. A phosphodiesterase IV inhibitor with antidepressant and anxiolytic properties.

Etazolate: A potent phosphodiesterase inhibitor proposed as an antipsychotic agent.
ethyl ester;
hydrazone;
pyrazolopyridine
alpha-secretase activator;
antidepressant;
antipsychotic agent;
anxiolytic drug;
GABA agent;
neuroprotective agent;
phosphodiesterase IV inhibitor
ibudilastpyrazolopyridine
amrinoneamrinone : A 3,4'-bipyridine substituted at positions 5 and 6 by an amino group and a keto function respectively. A pyridine phosphodiesterase 3 inhibitor, it is a drug that may improve the prognosis in patients with congestive heart failure.

Amrinone: A positive inotropic cardiotonic (CARDIOTONIC AGENTS) with vasodilator properties, phosphodiesterase 3 inhibitory activity, and the ability to stimulate calcium ion influx into the cardiac cell.
bipyridinesEC 3.1.4.* (phosphoric diester hydrolase) inhibitor
1-methyl-3-isobutylxanthine1-Methyl-3-isobutylxanthine: A potent cyclic nucleotide phosphodiesterase inhibitor; due to this action, the compound increases cyclic AMP and cyclic GMP in tissue and thereby activates CYCLIC NUCLEOTIDE-REGULATED PROTEIN KINASES

3-isobutyl-1-methylxanthine : An oxopurine that is xanthine which is substituted at positions 1 and 3 by methyl and isobutyl groups, respectively.
3-isobutyl-1-methylxanthine
2-(4-morpholinyl)-8-phenyl-4h-1-benzopyran-4-one2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one: specific inhibitor of phosphatidylinositol 3-kinase; structure in first sourcechromones;
morpholines;
organochlorine compound
autophagy inhibitor;
EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor;
geroprotector
milrinonebipyridines;
nitrile;
pyridone
cardiotonic drug;
EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor;
platelet aggregation inhibitor;
vasodilator agent
omeprazole5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole : A member of the class of benzimidazoles that is 1H-benzimidazole which is substituted by a [4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl group at position 2 and a methoxy group at position 5.

omeprazole : A racemate comprising equimolar amounts of (R)- and (S)-omeprazole.

Omeprazole: A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.
aromatic ether;
benzimidazoles;
pyridines;
sulfoxide
papaverinepapaverine : A benzylisoquinoline alkaloid that is isoquinoline substituted by methoxy groups at positions 6 and 7 and a 3,4-dimethoxybenzyl group at position 1. It has been isolated from Papaver somniferum.

Papaverine: An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.
benzylisoquinoline alkaloid;
dimethoxybenzene;
isoquinolines
antispasmodic drug;
vasodilator agent
pentoxifyllineoxopurine
proxyphyllineoxopurine
pyrimethamineMaloprim: contains above 2 cpdsaminopyrimidine;
monochlorobenzenes
antimalarial;
antiprotozoal drug;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor
4-(3-butoxy-4-methoxybenzyl)-2-imidazolidinone4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinone: Inhibitor of phosphodiesterases.methoxybenzenes
roliprampyrrolidin-2-onesantidepressant;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor
sulmazolesulmazole : An imidazopyridine that is 1H-imidazo[4,5-b]pyridine which is substituted at position 2 by a 2-methoxy-4-(methylsulfinyl)phenyl group. An A1 adenosine receptor antagonist, it was formerly used as a cardiotonic agent.

sulmazole: structure given in first source
imidazopyridine;
sulfoxide
adenosine A1 receptor antagonist;
cardiotonic drug;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor
trequinsintrequinsin: RN given refers to parent cpd; structure given in first sourcepyridopyrimidine
3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole: antineoplastic; activates platelet guanylate cyclase; a radiosensitizing agent and guanylate cyclase activator; structure in first source

lificiguat : A member of the class of indazoles that is 1H-indazole which is substituted by a benzyl group at position 1 and a 5-(hydroxymethyl)-2-furyl group at position 3. It is an activator of soluble guanylate cyclase and inhibits platelet aggregation.
aromatic primary alcohol;
furans;
indazoles
antineoplastic agent;
apoptosis inducer;
platelet aggregation inhibitor;
soluble guanylate cyclase activator;
vasodilator agent
zardaverinezardaverine : A pyridazinone derivative in which pyridazin-3(2H)-one is substituted at C-6 with a 4-(difluoromethoxy)-3-methoxyphenyl group. It is a phosphodiesterase inhibitor, selective for PDE3 and 4.

zardaverine: structure given in first source
organofluorine compound;
pyridazinone
anti-asthmatic drug;
bronchodilator agent;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
peripheral nervous system drug
papaverine hydrochloride
cinchophencinchophen: was heading 1963-94; ACIPHENOCHINOLIUM was see CHINOPHEN 1978-94; use QUINOLINES to search CINCHOPHEN 1966-94quinolines
2-chloroadenosine5-chloroformycin A: structure given in first sourcepurine nucleoside
cycloguanilcycloguanil : A triazine in which a 1,6-dihydro-1,3,5-triazine ring is substituted at N-1 by a 4-chlorophenyl group, at C-2 and -4 by amino groups and at C-6 by gem-dimethyl groups. A dihydrofolate reductase inhibitor, it is a metabolite of the antimalarial drug proguanil.

cycloguanil: the active metabolite of proguanil; antifolate drug; structure in first source
triazinesantifolate;
antiinfective agent;
antimalarial;
antiparasitic agent;
antiprotozoal drug;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor
oxycinchophenquinolines
alpha-naphthoflavonealpha-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the h side of flavone. A synthetic compound, it is an inhibitor of aromatase (EC 1.14.14.14).

alpha-naphthoflavone: inhibits P4501A1 and P4501A2; stimulates some activities of P4503A4
extended flavonoid;
naphtho-gamma-pyrone;
organic heterotricyclic compound
aryl hydrocarbon receptor agonist;
aryl hydrocarbon receptor antagonist;
EC 1.14.14.14 (aromatase) inhibitor
5-nitroquinoline
2-amino-4,6-dimethyl pyrimidine2-amino-4,6-dimethyl pyrimidine: structure in first sourceaminopyrimidine
cladribineorganochlorine compound;
purine 2'-deoxyribonucleoside
antineoplastic agent;
immunosuppressive agent
5-nitroindazole
cartazolatecartazolate: structure
eg 626phthalazinol: RN given refers to parent cpd; do not confuse with phthalazinol: 62054-23-3; thromboxane A2 antagonistphthalazines
enoximoneEnoximone: A selective phosphodiesterase inhibitor with vasodilating and positive inotropic activity that does not cause changes in myocardial oxygen consumption. It is used in patients with CONGESTIVE HEART FAILURE.aromatic ketone
2-(2-methoxy-4-(methylsulfinyl)phenyl)-1h-imidazo(4,5-c)pyridine2-(2-methoxy-4-(methylsulfinyl)phenyl)-1H-imidazo(4,5-c)pyridine: RN & structure given in first source; RN given refers to parent cpd; closely related to sulmazoleimidazoles
imazodanimazodan: RN & structure given in first source;
rutecarpinerutacarpine: from Evodia rutaecarpa; an ingredient in zhuyu hewei zhitong capsulesbeta-carbolines
7-chloro-4-hydroxyquinoline7-chloro-4-hydroxyquinoline: structure given in first source
girisopam
cipamfyllinecipamfylline: a PDE type-4 inhibitoroxopurine
bufrolinbufrolin: inhibits the release of histamine; proposed for treatment of hay fever, asthma and skin allergies; minor descriptor (79-86); on line & INDEX MEDICUS search PHENANTHROLINES (79-86); RN given refers to parent cpd
denitro-kt-1denitro-KT-1: structure given in first source; analog of KT-1 with nitro group replaced by hydroxy group
fpl 55712FPL 55712: inhibitor of SRS-A and LTC4 and LTD4 receptorsaromatic ketone
beta-carboline-3-carboxylic acid ethyl esterbeta-carboline-3-carboxylic acid ethyl ester: isolated from brain tissue & urine; extremely potent displacer of diazepam from brain benzodiazepam receptors; structure in first sourcebeta-carbolines
tadalafilbenzodioxoles;
pyrazinopyridoindole
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
clofarabineadenosines;
organofluorine compound
antimetabolite;
antineoplastic agent
4-phenylpyrrolidone-2
9-(2-hydroxy-3-nonyl)adenine(2R,3S)-EHNA : EHNA of absolute configuration 2R,3S. Selective inhibitor of cGMP-stimulated phosphodiesterase (PDE2) (IC50 = 0.8 - 4 mM). Also a potent inhibitor of adenosine deaminase.EHNAEC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
EC 3.5.4.4 (adenosine deaminase) inhibitor
9-(2-hydroxy-3-nonyl)adenine(2S,3R)-EHNA : EHNA of absolute configuration 2S,3R.EHNA
cilomilastmethoxybenzenes
evodiaminebeta-carbolines
rp 73401piclamilast : A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 3-(cyclopentyloxy)-4-methoxybenzoic acid with the primary amino group of 3,5-dichloropyridin-4-amine.

piclamilast: an antiasthmatic agent and phosphodiesterase 4 inhibitor; structure in first source
aromatic ether;
benzamides;
chloropyridine;
monocarboxylic acid amide
anti-asthmatic drug;
anti-inflammatory agent;
bronchodilator agent;
phosphodiesterase IV inhibitor
moracin cbenzofurans
8-methoxymethyl-3-isobutyl-1-methylxanthine8-methoxymethyl-3-isobutyl-1-methylxanthine: inhibitor of phosphodiesterase Ioxopurine
ly 311727LY 311727: a potent & selective inhibitor of human non-pancreatic secretory phospholipase A2; structure given in first source
perlolyrineperlolyrine: structure given in first sourceorganic molecular entitymetabolite
sb 203580imidazoles;
monofluorobenzenes;
pyridines;
sulfoxide
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor;
geroprotector;
Hsp90 inhibitor;
neuroprotective agent
moracin mmoracin M: has been isolated from Morus alba L.; structure in first sourcebenzofurans
o-(4-ethoxybutyl)berbamineO-(4-ethoxybutyl)berbamine: structure given in first source; calmodulin antagonist
2-amino-4-methyl-3-nitropyridine
berbaminebisbenzylisoquinoline alkaloid;
isoquinolines
vinpocetinevinpocetine: whole issue of Arzneim Forsch (23 articles) discuss this drug; Arzneim Forsch 26(10a);1976; RN given refers to parent cpd with unspecified isomeric designationalkaloidgeroprotector
roflumilastaromatic ether;
benzamides;
chloropyridine;
cyclopropanes;
organofluorine compound
anti-asthmatic drug;
phosphodiesterase IV inhibitor
8-isopentenylnaringenin8-isopentenylnaringenin: a non-steroidal phytoestrogen from Anaxagorea luzonensis; structure in first sourceflavanones
4,5-dihydro-6-(4-(imidazol-1-yl)phenyl)-5-methyl-3(2h)-pyridazinone4,5-dihydro-6-(4-(imidazol-1-yl)phenyl)-5-methyl-3(2H)-pyridazinone: RN & structure given in first source
idoxifeneidoxifene: structure given in first sourcestilbenoid
icaritinicaritin: structure in first source
icariinflavonols;
glycosyloxyflavone
antioxidant;
bone density conservation agent;
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
phytoestrogen
1,3-dihydro-7,8-dimethyl-2h-imidazo(4,5-b)quinolin-2-one1,3-dihydro-7,8-dimethyl-2H-imidazo(4,5-b)quinolin-2-one: structure given in first source
baohuoside ibaohuoside I: structure given in first source; isolated from the herb Epimedium davidiiglycosyloxyflavoneanti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
plant metabolite
N-(1,3-benzodioxol-5-ylmethyl)-6-chloro-4-quinazolinaminequinazolines
sch 351591SCH 351591: a phosphodiesterase 4 inhibitor; structure in first source

SCH-351591 : An aromatic amide resulting from the formal condensation of the carboxy group of 8-methoxy-2-(trifluoromethyl)quinoline-5-carboxylic acid with the primary amino group of 3,5-dichloropyridin-4-amine 1-oxide. It is a potent inhibitor of phosphodiesterase IV (PDE4).
avanafilaromatic amide;
monocarboxylic acid amide;
organochlorine compound;
prolinols;
pyrimidines
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
vasodilator agent
t 1032T 1032: a cyclic GMP phosphodiesterase-5 inhibitor; structure in first source
licoflavone clicoflavone C: Antimutagenic Agent; a naturally occurring prenyl-flavone extracted from Genista ephedroides; structure in first source
pf-2545920
(2R,3S)-EHNA hydrochloride(2R,3S)-EHNA hydrochloride : A hydrochloride salt obtained by reaction of (2R,3S)-EHNA with one equivalent of hydrochloric acid. Selective inhibitor of cGMP-stimulated phosphodiesterase (PDE2) (IC50 = 0.8 - 4 mM). Also a potent inhibitor of adenosine deaminase.hydrochlorideEC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
EC 3.5.4.4 (adenosine deaminase) inhibitor
sch 51866SCH 51866: structure given in first source
tanninsgallotannin : A class of hydrolysable tannins obtained by condensation of the carboxy group of gallic acid (and its polymeric derivatives) with the hydroxy groups of a monosaccharide (most commonly glucose).tannin
pf 04217903quinolines
3-(2,5-dimethoxyphenyl)-6-(3,4-dimethoxyphenyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazinetriazoles
azd7687AZD7687: structure in first source
an2728crisaborole : A member of the class of benzoxaboroles that is 5-hydroxy-1,3-dihydro-2,1-benzoxaborole in which the phenolic hydrogen has been replaced by a 4-cyanophenyl group. A phosphodiesterase 4 inhibitor that is used for treatment of mild to moderate atopic dermatitis in children and adults.

crisaborole: NSAID, Dermatologic Agent; structure in first source
aromatic ether;
benzoxaborole;
nitrile
antipsoriatic;
non-steroidal anti-inflammatory drug;
phosphodiesterase IV inhibitor
chf6001tanimilast: a phosphodiesterase-4 inhibitor; structure in first source
sildenafilsildenafil : A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position.piperazines;
pyrazolopyrimidine;
sulfonamide
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
zaprinastzaprinast: anaphylaxis inhibitor; structuretriazolopyrimidines
vardenafilvardenafil : The sulfonamide resulting from formal condensation of the sulfo group of 4-ethoxy-3-(5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one-2-yl)benzenesulfonic acid and the secondary amino group of 4-ethylpiperazine.imidazotriazine;
N-alkylpiperazine;
N-sulfonylpiperazine
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
vasodilator agent
2-methyl-4(3h)-quinazolinone2-methyl-4(3H)-quinazolinone: from Bacillus cereus; structure given in first source
Imidazosagatriazinonepyrazolopyrimidine
4-hydroxyquinazoline4-oxo-3,4-dihydroquinazoline: structure in first sourcequinazolines
bl 4162aanagrelide : A 1,5-dihydroimidazo[2,1-]quinazoline having an oxo substituent at the 2-position and chloro substituents at the 6- and 7-positions.

anagrelide: imidazoquinazoline derivative which lowers platelet count probably by inhibiting thrombopoiesis and reduces platelet aggregation; used for thrombocythemia; structure in first source
imidazoquinazolineanticoagulant;
antifibrinolytic drug;
cardiovascular drug;
platelet aggregation inhibitor
sildenafil citratesildenafil citrate : The citrate salt of sildenafil.

Sildenafil Citrate: A PHOSPHODIESTERASE TYPE-5 INHIBITOR; VASODILATOR AGENT and UROLOGICAL AGENT that is used in the treatment of ERECTILE DYSFUNCTION and PRIMARY PULMONARY HYPERTENSION.
citrate saltEC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
da 8159udenafil: a pyrazolo-pyrimidinone similar to sildenafil; phosphodiesterase type 5 inhibitor;sulfonamide
sk&f 962312-(2-propoxyphenyl)-6-purinone: selective phosphodiesterase II inhibitor
bay 73-6691BAY 73-6691: potent and selective inhibitor of phosphodiesterase 9; structure in first source
6-((3s,4s)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl)-1-(tetrahydro-2h-pyran-4-yl)-1,5-dihydro-4h-pyrazolo(3,4-d)pyrimidin-4-one
bay 60-7550