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Pregnenolone
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Definition
: A 21-carbon steroid, derived from CHOLESTEROL and found in steroid hormone-producing tissues. Pregnenolone is the precursor to GONADAL STEROID HORMONES and the adrenal CORTICOSTEROIDS.
do not confuse with PREGNANOLONE
Examples
17-alpha-Hydroxypregnenolone
;
Pregnenolone Carbonitrile
Other names
5 Pregnen 3 beta ol 20 one; 5-
Pregnen-
3-
beta-
ol-
20-
one
Substance
CAS Registry & name
Categories
Source
Drugs
*
3-
acetoxy-
5,6-
epoxy-
16-
pregnen-
20-
one
0
Pregnenolone/*analogs & derivatives.
Andrologia 2009 Feb;41(1):29-34
3beta-
methoxypregnenolone
0
Pregnenolone/*analogs & derivatives.
Proc Natl Acad Sci U S A 2006 Mar 21;103(12):4711-6
7-
dehydropregnenolone
0
Pregnenolone/*analogs & derivatives.
Proc Natl Acad Sci U S A 2003 Dec 9;100(25):14754-9
16,17-
epoxy-
20-
oxopregn-
5-
en-
3-
yl acetate
0
Pregnenolone/*analogs & derivatives.
Acta Crystallogr C 2001 May;57(Pt 5):587-9
22-
iminopregn-
5-
en-
3-
ol
0
*Imines
Pregnenolone/*analogs & derivatives
Steroid 17-alpha-Hydroxylase/antagonists & inhibitors.
J Med Chem 2000 Nov 16;43(23):4437-45
16-
hydroxypregnenolone
0
Pregnenolone/*analogs & derivatives.
Biol Pharm Bull 1999 Dec;22(12):1262-5
CCD 3693
177080-77-2
Pregnenolone/*analogs & derivatives.
J Pharmacol Exp Ther 1997 Jul;282(1):420-9
pregnenolone 3-
stearate
0
*Stearates
Pregnenolone/*analogs & derivatives.
J Chromatogr Sci 1997 Feb;35(2):71-4
pregnenolone-
3-
O-
methylthiophosphonate
155538-87-7
Pregnenolone/*analogs & derivatives
Arylsulfatases/antagonists & inhibitors.
J Steroid Biochem Mol Biol 1994 Apr;48(5-6):523-7
esculentin steroid
131889-89-9 Pregn-
5-
en-
20-
one, 3-
((O-
6-
deoxy-
3-
O-
methyl-
beta-
D-
glucopyranosyl-
(1-
4)-
O-
2,6-
dideoxy-
3-
O-
methyl-
beta-
D-
ribo-
hexopyranosyl-
(1-
4)-
2,6-
dideoxy-
3-
O-
methyl-
beta-
D-
arabino-
hexopyranosyl)oxy)-
8,11,12,14,17-
pentahydroxy-
, (3beta,11alpha,12beta,14beta,17alpha)
*Glycosides
Pregnenolone/*analogs & derivatives
Coumarins.
Biol Pharm Bull 1994 Aug;17(8):1018-22
hancoside A
145701-08-2
*Saponins
Pregnenolone/*analogs & derivatives.
Yao Hsueh Hsueh Pao 1992;27(8):595-602
pregnenolone 16-
acetonitrile
102812-95-3
*Acetonitriles
Pregnenolone/*analogs & derivatives.
Eur J Drug Metab Pharmacokinet 1991;16(1):9
N-
(4-
iodophenyl)pregnenolone 3-
carbamate
124824-12-0
Pregnenolone/*analogs & derivatives.
Int J Rad Appl Instrum (B) 1989;16(6):603
pregnenolone 2,6-
dimethyl-
3-
iodobenzoate
124784-16-3 Pregn-
5-
en-
20-
one, 3-
((3-
iodo-
2,6-
dimethylbenzoyl)oxy)-
, (3beta)
Pregnenolone/*analogs & derivatives.
Int J Rad Appl Instrum (B) 1989;16(6):603
21-
chloropregnenolone
30459-98-4
Pregnenolone/*analogs & derivatives.
Arch Biochem Biophys 1988;264(2):462
21,21-
dichloropregnenolone
117038-60-5
Pregnenolone/*analogs & derivatives.
Arch Biochem Biophys 1988;264(2):462
pregnenolone-
naltrexone azine
108743-74-4
Naltrexone/*analogs & derivatives
Pregnenolone/*analogs & derivatives.
Natl Inst Drug Abuse Res Monogr Ser 1986;75:45
20-
((2-
trimethylsilyl)ethyl)pregn-
5-
en-
3,20-
diol
88703-32-6 24-
Norchol-
5-
ene-
3,20-
diol, 23-
(trimethylsilyl)-
, (3beta)
*Trimethylsilyl Compounds
Pregnenolone/*analogs & derivatives.
J Biol Chem 1985;260(2):852
pregnenolone iopanoate
0
Iopanoic Acid/*analogs & derivatives
Pregnenolone/*analogs & derivatives.
J Comput Assist Tomogr 1984;8(6):1099
Metharmon F
92526-19-7 Androst-
4-
ene-
3,17-
dione, mixt. with (3beta,17beta)-
androst-
5-
ene-
3,17-
diol, desiccated thyroid hormones, (17beta)-
17-
hydroxyandrost-
4-
en-
3-
one, 3-
hydroxyestra-
1,3,5(10)-
trien-
17-
one and (3beta)-
3-
hydroxypregn-
5-
en-
20-
one
*Androstenedione
*Estrone
*Pregnenolone
*Testosterone
*Thyroid (USP)
*Androstenediol
Drug Combinations.
Horumon To Rinsho 1983;31(8):815
20-
(1,5-
hexadiynyl)-
5-
pregnen-
3,20-
diol
86532-89-0 Pregn-
5-
ene-
3,20-
diol, 20-
(1,5-
hexadiynyl)-
, (3beta,20R)
Pregnenolone/*analogs & derivatives
Cholesterol Side-Chain Cleavage Enzyme/antagonists & inhibitors.
J Biol Chem 1983;258(11):6721
20-
(1-
hexynyl)-
5-
pregnen-
3,20-
diol
86532-88-9 Pregn-
5-
ene-
3,20-
diol, 20-
(1-
hexynyl)-
, (3beta,20R)
Pregnenolone/*analogs & derivatives
Cholesterol Side-Chain Cleavage Enzyme/antagonists & inhibitors.
J Biol Chem 1983;258(11):6721
20-
(1-
propynyl)-
5-
pregnen-
3,20-
diol
86562-07-4 Chol-
5-
en-
22-
yne-
3,20-
diol, (3beta)
Pregnenolone/*analogs & derivatives
Cholesterol Side-Chain Cleavage Enzyme/antagonists & inhibitors.
J Biol Chem 1983;258(11):6721
pregnenolone oleate
72205-39-1
Pregnenolone/*analogs & derivatives.
J Steroid Biochem 1983;18(3):257
pregnenolone receptor
0
*Receptors, Glucocorticoid
Pregnenolone.
Biochim Biophys Acta 1983;755(1):40
3 beta,11 alpha,15 beta-
trihydroxy-
5-
pregnen-
20-
one
78806-45-8 Pregn-
5-
en-
20-
one, 3,11,15-
trihydroxy-
, (3beta,11alpha,15beta)
Pregnenolone/*analogs & derivatives.
Steroids 1981;37(3):291
16-
pregnolone
566-61-0
*Pregnenolone
Isomerism.
J Steroid Biochem 1980;13(10):1181
pregnenolone sulfate
1247-64-9
*Pregnenolone.
Biochemistry 17(21):4557;1978
16 alpha-
isothiocyanopregnenolone-
3-
acetate
6084-04-4 3 beta-
(acetyloxy)-
16 alpha-
isothiocyanatopregn-
5-
en-
20-
one
Pregnenolone/*analogs & derivatives.
Biokhimiia 43(7):1233;1978; Dokl Akad Nauk SSSR 245(2):474;1979; Vopr Med Khim 23(4):473;1977
tomatillidine
986-45-8 (3 beta,20S,21R)-
21-
(4,5-
dihydro-
4-
methyl-
3H-
pyrrol-
2-
yl)-