Abstract
Chemical modification of progesterone molecule leads to changes both in the gestagenic activity of new derivatives and in their specific binding with progesterone receptors. The passage from esters (acetomepregenole, butagest) to the corresponding OH-forms such as 17a-acetoxy-3b-hydroxy-6-methyl-pregna-4,6-dien-20-one (ABMP)is accompanied by an increase in the binding with progesterone receptors in vitro. The translocation of a double bond from endocyclic (N6-N7) to exocyclic position (methylene group at N6 in ABMP) has no significant effect on the ability to binding with progesterone receptors.
MeSH terms
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17-alpha-Hydroxyprogesterone / analogs & derivatives
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17-alpha-Hydroxyprogesterone / chemistry
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17-alpha-Hydroxyprogesterone / metabolism
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Adult
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Endometrial Hyperplasia / metabolism
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Endometrial Hyperplasia / prevention & control
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Endometrium / metabolism*
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Female
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Humans
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Hydroxyprogesterones / chemistry
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Hydroxyprogesterones / metabolism
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Middle Aged
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Pregnadienediols / chemistry
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Pregnadienediols / metabolism
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Pregnenes / chemistry
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Pregnenes / metabolism
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Progesterone Congeners / chemistry
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Progesterone Congeners / metabolism*
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Progestins / chemistry
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Progestins / metabolism*
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Receptors, Progesterone / metabolism*
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Structure-Activity Relationship
Substances
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17alpha-acetoxy-3beta-butanoyloxy-6-methyl-pregna-4,6-dien-20-one
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17alpha-acetoxy-3beta-hydroxy-6-methylene-pregna-4-en-20-one
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17alpha-hydroxy-6-methylene-progesterone
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Hydroxyprogesterones
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Pregnadienediols
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Pregnenes
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Progesterone Congeners
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Progestins
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Receptors, Progesterone
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mepregenol diacetate
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17-alpha-Hydroxyprogesterone