中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3α,12α-bis(acetoxy)-5Hβ-pregnan-20-one | 15991-93-2 | C25H38O5 | 418.574 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 12α-acetoxy-3α-hydroxy-17-methyl-5β-androstane-17β-carboxylic acid methyl ester | 114598-40-2 | C24H38O5 | 406.563 |
—— | 12α-acetoxy-3α-hydroxy-17-methyl-5β-androstane-17β-carboxylic acid | 112820-09-4 | C23H36O5 | 392.536 |
—— | 12α-acetoxy-17-methyl-3-oxo-5β-androstane-17β-carboxylic acid methyl ester | 114552-78-2 | C24H36O5 | 404.547 |
—— | 12α-acetoxy-17-methyl-3-oxo-5β-androstane-17β-carboxylic acid | 114998-11-7 | C23H34O5 | 390.52 |
—— | 12α-hydroxy-3α-(3-methoxycarbonyl-propionyloxy)-17-methyl-5β-androstane-17β-carboxylic acid methyl ester | 119187-61-0 | C27H42O7 | 478.626 |
—— | 3α,12α-dihydroxy-17-methyl-5β-androstane-17β-carboxylic acid methyl ester | 112864-08-1 | C22H36O4 | 364.525 |
—— | 12α-hydroxy-17-methyl-3-oxo-5β-androstane-17β-carboxylic acid methyl ester | 115210-79-2 | C22H34O4 | 362.51 |
—— | 12α-acetoxy-17-methyl-5β-pregnane-3,20-dione | 114552-75-9 | C24H36O4 | 388.547 |
—— | 3α,12α-dihydroxy-17-methyl-5β-androstane-17β-carboxylic acid | 15173-75-8 | C21H34O4 | 350.499 |
—— | 12α-hydroxy-17-methyl-5β-pregnane-3,20-dione | 115207-31-3 | C22H34O3 | 346.51 |
An improved synthesis of 11-dehydro-17α-methylprogesterone, previously synthesized by this group, has been devised. The new hormone analogue has the same luteoid activity as 17α-methylprogesterone; in this case, the 11,12-unsaturation has no potentiating effect on the progestational activity. Some stereochemical aspects of the Faworsky rearrangement of 17α-halo-20-keto steroids are discussed in a preliminary fashion.