6α-Methylprogesterone (6α-MP) is a progestin which was never marketed.[1][2][3][4][5][6][7] It has 150% of the progestogenicpotency of progesterone.[5] In addition, and in contrast to progesterone, 6α-MP has weak androgenic, antiandrogenic, and synandrogenic actions.[5] 6α-MP is structurally related to medroxyprogesterone acetate (MPA; 6α-methyl-17α-acetoxyprogesterone) and megestrol acetate (MGA; 6-dehydro-6-methyl-17α-acetoxyprogesterone), which possess androgenic and/or antiandrogenic activity to varying degrees similarly.[5] MPA is more androgenic than 6α-MP and MGA.[5]
References[]
^Wu YL, Chow WZ, Hou CC, Huang-minlon (October 1965). "Synthesis of 6-alpha-methylprogesterone from hyodesoxycholic acid". Sci. Sin. 14 (10): 1533–5. PMID5881565.
^Brown TR, Bullock LP, Bardin CW (1979). "In vivo metabolism and binding of 6 alpha-methylprogesterone; a progestin with anti-androgenic and synandrogenic activities". Adv. Exp. Med. Biol. Advances in Experimental Medicine and Biology. 117: 269–80. doi:10.1007/978-1-4757-6589-2_14. ISBN978-1-4757-6591-5. PMID474281.
^Brown TR, Bullock LP, Bardin CW (December 1981). "The nuclear uptake of 6 alpha-[3H]methylprogesterone and its 20 alpha-hydroxy metabolite: the requirement for multiple receptors". Endocrinology. 109 (6): 1821–9. doi:10.1210/endo-109-6-1821. PMID7308133.
^Brown TR, Bullock LP, Bardin CW (December 1981). "The biological actions and metabolism of 6 alpha-methylprogesterone: a progestin that mimics and modifies the effects of testosterone". Endocrinology. 109 (6): 1814–20. doi:10.1210/endo-109-6-1814. PMID7308132.
^ abcdeBardin CW, Brown T, Isomaa VV, Jänne OA (1983). "Progestins can mimic, inhibit and potentiate the actions of androgens". Pharmacol. Ther. 23 (3): 443–59. doi:10.1016/0163-7258(83)90023-2. PMID6371845.
^Houben PW, Bullock LP (1985). "Receptor binding of 6 alpha-methylprogesterone in mouse kidney". Horm. Res. 21 (4): 261–9. doi:10.1159/000180059. PMID4007785.
^Wayne Bardin, C.; Janne, Olli A. (1986). "Steroids of One Class Can Mimic, Inhibit and Potentiate the Biological Effects of Other Steroid Classes When Administered at High Doses". Contraceptive Steroids. pp. 123–143. doi:10.1007/978-1-4613-2241-2_6. ISBN978-1-4612-9313-2.