Any hydroxy steroid that in which the steroid skeleton contains a hydroxy substituent at position 20.
| Member | Definition | Role |
|---|
| (20s)-20-hydroxycholesterol | An oxysterol that is cholesterol substituted by a hydroxy group at position 20. | 20-hydroxycholesterol |
| 20 beta-dihydroprogesterone | A C21-steroid that is pregnane which contains a double bond between positions 4 and 5 and is substituted by an oxo group at position 3 and a hydroxy group at position 20. | 20-hydroxypregn-4-en-3-one |
| 20,22-dihydroxycholesterol | An oxysterol that is cholesterol substituted by hydroxy groups at positions 20 and 22 (the 20R,22R-stereoisomer). | (20R,22R)-20,22-dihydroxycholesterol |
| cyasterone | | cyasterone |
| ecdysterone | An ecdysteroid that is ecdysone substituted by a hydroxy group at position 20. | 20-hydroxyecdysone |
| ginsenoside rf | A ginsenoside found in Panax ginseng and Panax japonicus var. major that is dammarane which is substituted by hydroxy groups at the 3beta, 6alpha, 12beta and 20 pro-S positions, in which the hydroxy group at position 6 has been converted to the corresponding beta-D-glucopyranosyl-(1->2)-beta-D-glucopyranoside, and in which a double bond has been introduced at the 24-25 position. | ginsenoside Rf |
| ginsenoside rg2 | A ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 6alpha, 12beta and 20 pro-S positions, in which the hydroxy group at position 6 has been converted to the corresponding alpha-L-rhamnopyranosyl-(1->2)-beta-D-glucopyranoside, and in which a double bond has been introduced at the 24-25 position. | ginsenoside Rg2 |
| ginsenoside rh2 | A ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy group at position 3 has been converted to the corresponding beta-D-glucopyranoside, and in which a double bond has been introduced at the 24-25 position. | (20S)-ginsenoside Rh2 |
| ponasterone a | | ponasterone A |
| withanolide d | A withanolide that is 5,6:22,26-diepoxyergosta-2,24-diene-1,26-dione substituted by hydroxy groups at positions 4 and 22 (the 4beta,5beta,6beta,22R stereoisomer). Isolated from Tubocapsicum anomalum and Withania somnifera, it exhibits cytotoxic activity. | withanolide D |