encyclopedia of medical concepts
ψ
ψ
20-alpha-Dihydroprogesterone
More information
in Books
or on
Definition
: A biologically active 20-alpha-reduced metabolite of PROGESTERONE. It is converted from progesterone to 20-alpha-hydroxypregn-4-en-3-one by the 20-ALPHA-HYDROXYSTEROID DEHYDROGENASE in the CORPUS LUTEUM and the PLACENTA.
Pharmacological Action
Progestins
Other names
Dihydroprogesterone; Pregn 4 en 3 one, 20 alpha hydroxy; 20alpha Hydroxypregn 4 Ene 3 One; 20-
alpha-
hydroxy-
Pregn-
4-
en-
3-
one; 20 alpha Hydroxyprogesterone; 20 alpha Hydroxy 4 Pregnen 3 One; 20 alpha Dihydroprogesterone; Pregn-
4-
en-
3-
one, 20-
alpha-
hydroxy; 20alpha-
Hydroxypregn-
4-
Ene-
3-
One; 20-
alpha-
Hydroxyprogesterone; 20 alpha-
Hydroxyprogesterone; 20 alpha-
Hydroxy-
4-
Pregnen-
3-
One; 20 alpha-
Dihydroprogesterone
Substance
CAS Registry & name
Categories
Source
Drugs
*
3-
hydroxypregn-
4-
en-
20-
one
25680-68-6
20-alpha-Dihydroprogesterone/*analogs & derivatives.
Endocrinology 1987;120(6):2259
11-
beta-
hydroxy-
20-
alpha-
dihydroprogesterone
15137-31-2
20-alpha-Dihydroprogesterone/*analogs & derivatives.
Proc Nat Acad Sci USA 70(10):2753;1973
20 beta-
dihydroprogesterone
15114-79-1 (20R)-
20-
hydroxypregn-
4-
en-
3-
one
*20-alpha-Dihydroprogesterone
Isomerism.
Biol Reprod 1(1):49;1969; Biol Reprod 14(5):572;1976; Gen Comp Endocrinol 24(4):352;1974