Substance | Relationship Strength | Studies | Trials | Classes | Roles |
dimethyl sulfoxide Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.. dimethyl sulfoxide : A 2-carbon sulfoxide in which the sulfur atom has two methyl substituents. | 2.05 | 1 | 0 | sulfoxide; volatile organic compound | alkylating agent; antidote; Escherichia coli metabolite; geroprotector; MRI contrast agent; non-narcotic analgesic; polar aprotic solvent; radical scavenger |
1-methyl-3-isobutylxanthine 1-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. | 2.13 | 1 | 0 | 3-isobutyl-1-methylxanthine | |
papaverine 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.. papaverine : 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. | 2.13 | 1 | 0 | benzylisoquinoline alkaloid; dimethoxybenzene; isoquinolines | antispasmodic drug; vasodilator agent |
pentoxifylline [no description available] | 2.13 | 1 | 0 | oxopurine | |
pyrimethamine Maloprim: contains above 2 cpds | 2.05 | 1 | 0 | aminopyrimidine; monochlorobenzenes | antimalarial; antiprotozoal drug; EC 1.5.1.3 (dihydrofolate reductase) inhibitor |
rolipram [no description available] | 2.13 | 1 | 0 | pyrrolidin-2-ones | antidepressant; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor |
trimethoprim Trimethoprim: A pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to PYRIMETHAMINE. It is potentiated by SULFONAMIDES and the TRIMETHOPRIM, SULFAMETHOXAZOLE DRUG COMBINATION is the form most often used. It is sometimes used alone as an antimalarial. TRIMETHOPRIM RESISTANCE has been reported.. trimethoprim : An aminopyrimidine antibiotic whose structure consists of pyrimidine 2,4-diamine and 1,2,3-trimethoxybenzene moieties linked by a methylene bridge. | 2.03 | 1 | 0 | aminopyrimidine; methoxybenzenes | antibacterial drug; diuretic; drug allergen; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; environmental contaminant; xenobiotic |
zardaverine zardaverine: structure given in first source. zardaverine : 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. | 2.13 | 1 | 0 | organofluorine compound; pyridazinone | anti-asthmatic drug; bronchodilator agent; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; peripheral nervous system drug |
5-nitroquinoline [no description available] | 2.52 | 2 | 0 | | |
5-nitroindazole [no description available] | 2.52 | 2 | 0 | | |
7-chloro-4-hydroxyquinoline 7-chloro-4-hydroxyquinoline: structure given in first source | 2.52 | 2 | 0 | | |
a 8947 A 8947: RN & structure given in first source. azimsulfuron : An N-sulfonylurea that is urea in which a nitrogen attached to one of the nitrogens has been replaced by a 4,6-dipyrimidin-2-yl group while a hydrogen attached to the other urea nitrogen has been replaced by a [1-methyl-4-(2-methyl-2H-tetrazol-5-yl)-1H-pyrazol-5-yl]sulfonyl group. An acetolactate synthase inhibitor, it is used as a herbicide for the control of a variety of broad-leaved and sedge weeds in paddy fields and other aquatic situations. | 2.03 | 1 | 0 | aromatic ether; biaryl; N-sulfonylurea; pyrazole pesticide; tetrazoles | EC 2.2.1.6 (acetolactate synthase) inhibitor; herbicide |
2-amino-4,6-dimethoxypyrimidine [no description available] | 2.05 | 1 | 0 | | |
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. | 2.13 | 1 | 0 | EHNA | EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor |
cilomilast [no description available] | 2.13 | 1 | 0 | methoxybenzenes | |
rp 73401 piclamilast: an antiasthmatic agent and phosphodiesterase 4 inhibitor; structure in first source. piclamilast : 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. | 2.13 | 1 | 0 | aromatic ether; benzamides; chloropyridine; monocarboxylic acid amide | anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; phosphodiesterase IV inhibitor |
2-amino-4-methyl-3-nitropyridine [no description available] | 2.52 | 2 | 0 | | |
betadex beta-Cyclodextrins: Cyclic GLUCANS consisting of seven (7) glucopyranose units linked by 1,4-glycosidic bonds. | 2.01 | 1 | 0 | cyclodextrin | |
rolipram (-)-rolipram : The (R)-enantiomer of rolipram. | 2.13 | 1 | 0 | rolipram | |
mesopram mesopram: a potent & selective type IV phosphodiesterase inhibitor | 2.13 | 1 | 0 | | |
roflumilast [no description available] | 2.13 | 1 | 0 | aromatic ether; benzamides; chloropyridine; cyclopropanes; organofluorine compound | anti-asthmatic drug; phosphodiesterase IV inhibitor |
cyclic nucleotide phosphodiesterases, type 4 [no description available] | 2.13 | 1 | 0 | | |
baohuoside i baohuoside I: structure given in first source; isolated from the herb Epimedium davidii | 2.13 | 1 | 0 | glycosyloxyflavone | anti-inflammatory agent; antineoplastic agent; apoptosis inducer; plant metabolite |
rs 25344 RS 25344: inhibits phosphodiesterase PDE-4D3; structure given in first source | 2.13 | 1 | 0 | | |
sildenafil sildenafil : 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. | 2.13 | 1 | 0 | piperazines; pyrazolopyrimidine; sulfonamide | EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor; vasodilator agent |
2-methyl-4(3h)-quinazolinone 2-methyl-4(3H)-quinazolinone: from Bacillus cereus; structure given in first source | 2.52 | 2 | 0 | | |
4-hydroxyquinazoline 4-oxo-3,4-dihydroquinazoline: structure in first source | 2.52 | 2 | 0 | quinazolines | |
bay 73-6691 BAY 73-6691: potent and selective inhibitor of phosphodiesterase 9; structure in first source | 2.13 | 1 | 0 | | |
bay 60-7550 [no description available] | 2.13 | 1 | 0 | | |