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Other names | Pentarane B; 6α-Methyl-16α,17α-cyclohexanoprogesterone |
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Formula | C26H38O2 |
Molar mass | 382.588 g·mol−1 |
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Mecigestone, also known as pentarane B, as well as 6α-methyl-16α,17α-cyclohexanoprogesterone, 6α-methylcyclohexano[1',2';16,17]pregn-4-ene-3,20-dione, or 17α-acetyl-6α-methyl-16β,24-cyclo-21-norchol-4-en-3-one, is a steroidal progestin that was developed by the Zelinskii Institute of Organic Chemistry of the Russian Academy of Sciences and has been proposed for clinical use as a progestogen but has not been marketed. [1] [2] [3] [4] [5] It is the 6α- methylated analogue of pentarane A, which is also known as D'6-pentarane or pregna-D'6-pentarane. [5]