Pregnane

Pregnane
Names


IUPAC names (8S,9S,10S,13R,14S,17S)-17-ethyl- 10,13-dimethyl-2,3,4,5,6,7,8,9,11,12, 14,15,16,17-tetradecahydro-1H- cyclopenta[a]phenanthrene
Identifiers
CAS Number	24909-91-9^N
ChEBI	CHEBI:8386^Y
ChemSpider	5256760^Y
Jmol interactive 3D	Image
PubChem	6857422
InChI InChI=1S/C21H36/c1-4-15-9-11-18-17-10-8-16-7-5-6-13-20(16,2)19(17)12-14-21(15,18)3/h15-19H,4-14H2,1-3H3/t15-,16?,17-,18-,19-,20-,21+/m0/s1^Y Key: JWMFYGXQPXQEEM-WZBAXQLOSA-N^Y InChI=1/C21H36/c1-4-15-9-11-18-17-10-8-16-7-5-6-13-20(16,2)19(17)12-14-21(15,18)3/h15-19H,4-14H2,1-3H3/t15-,16?,17-,18-,19-,20-,21+/m0/s1 Key: JWMFYGXQPXQEEM-WZBAXQLOBZ
SMILES C41CCCC[C@@]1([C@@H]3[C@H]([C@@H]2CC[C@@H]([C@@]2(C)CC3)CC)CC4)C
Properties
Chemical formula	C₂₁H₃₆
Molar mass	288.511 g/mol
Density	0.926 g/ml
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

Pregnane is, indirectly, a parent of progesterone. It is a parent hydrocarbon for two series of steroids stemming from 5α-pregnane (originally allopregnane) and 5β-pregnane (17β-ethyletiocholane).

5β-Pregnane is the parent of the progesterones, pregnane alcohols, ketones, and several adrenocortical hormones and is found largely in urine as a metabolic product of 5β-pregnane compounds.

Pregnanes

Steroid nomenclature: Pregnanes have carbons 1 through 21.

Pregnanes are steroid derivatives with carbons present at positions 1 through 21.

Most biologically significant pregnane derivatives fall into one of two groups: pregnenes and pregnadienes. Another class is pregnatrienes.

Pregnenes

Main article: pregnene

Cortisone

Pregnenes have a double bond. Examples include:

Pregnadienes

Main article: Pregnadiene

Cyproterone acetate

Pregnadienes have two double bonds. Examples include:

References

External links

Pregnanes at the US National Library of Medicine Medical Subject Headings (MeSH)
PubChem
Diagram at qmul.ac.uk
Definition of Pregnane
Progesterone Chemistry
Progesterone record in European Bioinformatics database

Steroid classification

C₁₇	Gonane

C₁₈	Estrane

C₁₉	Androstane

C₂₁	Pregnane

C₂₃	Cardanolide

C₂₄	Cholane Bile acid

C₂₇	Cholestane

Functional group	17-Ketosteroid Hydroxysteroid Halogenated steroid

Elements removed	Norsteroid Secosteroid

Nuclear receptor ligands

CAR

Agonists	5β-Dihydroprogesterone 6,7-Dimethylesculetin Amiodarone Artemisinin Benfuracarb Carbamazepine Carvedilol Chlorpromazine Chrysin CITCO Clotrimazole Cyclophosphamide Cypermethrin DHEA Efavirenz Ellagic acid Griseofulvin Methoxychlor Mifepristone Nefazodone Nevirapine Nicardipine Octicizer Permethrin Phenobarbital Phenytoin Reserpine TCPOBOP Telmisartan Tolnaftate Troglitazone Valproic acid

Antagonists	3,17β-Estradiol 3α-Androstanol 3α-Androstenol 3β-Androstanol 17-Androstanol AITC Ethinyl estradiol Meclizine Nigramide J Okadaic acid PK-11195 S-07662 T-0901317

ERR

ERRα

Agonists	6,3′,4′-Trihydroxyflavone Biochanin A Cholesterol Daidzein Genistein

Antagonists	XCT-790

ERRβ

Agonists	DY-131 GSK-4716

Antagonists	4-Hydroxytamoxifen (afimoxifene) Diethylstilbestrol

ERRγ

Agonists	Bisphenol A DY-131 GSK-4716

Antagonists	4-Hydroxytamoxifen (afimoxifene) Diethylstilbestrol

FXR

Agonists	Bile acids Cafestol Chenodeoxycholic acid Fexaramine GW-4064 Obeticholic acid

Antagonists	Guggulsterone

LXR

Agonists	22R-Hydroxycholesterol 24S-Hydroxycholesterol 27-Hydroxycholesterol Cholestenoic acid DMHCA GW-3965 Hypocholamide T-0901317

PPAR

PPARα

Agonists	15-HETE 15-HpETE Aleglitazar Aluminium clofibrate Arachidonic acid Bezafibrate Clofibrate CP-775146 Daidzein DHEA Elafibranor Fenofibrate Genistein Gemfibrozil GW-7647 Leukotriene B₄ LG-101506 LG-100754 Lobeglitazone Muraglitazar Oleylethanolamide Palmitoylethanolamide Pemafibrate Perfluorononanoic acid Perfluorooctanoic acid Pioglitazone Saroglitazar Sodelglitazar Tesaglitazar Tetradecylthioacetic acid Troglitazone WY-14643

Antagonists	GW-6471 MK-886

PPARδ

Agonists	15-HETE 15-HpETE Arachidonic acid Bezafibrate Daidzein Elafibranor Genistein GW-0742 GW-501516 L-165,041 LG-101506 MBX-8025 Sodelglitazar Tetradecylthioacetic acid

Antagonists	FH-535 GSK-0660 GSK-3787

PPARγ

Agonists	5-Oxo-ETE 5-Oxo-15-hydroxy-ETE 15-Deoxy-Δ^12,14-prostaglandin J₂ 15-HETE 15-HpETE Aleglitazar Arachidonic acid Berberine Bezafibrate Ciglitazone Daidzein Darglitazone Edaglitazone Etalocib Genistein GW-1929 Ibuprofen LG-100268 LG-100754 LG-101506 Lobeglitazone Muraglitazar nTZDpa Perfluorononanoic acid Pioglitazone Prostaglandin J₂ Rosiglitazone RS5444 Saroglitazar Sodelglitazar Telmisartan Tesaglitazar Troglitazone

SPPARMs	BADGE EPI-001 INT-131 MK-0533 S26948

Antagonists	FH-535 GW-9662 SR-202 T-0070907

Unknown	SR-1664

Unselective

Agonists	Ciprofibrate Clinofibrate Clofibride Englitazone Etofibrate Farglitazar Netoglitazone Ronifibrate Rivoglitazone Simfibrate

PXR

Agonists	5α-Dihydroprogesterone 5β-Dihydroprogesterone 17α-Hydroxypregnenolone 17α-Hydroxyprogesterone Δ⁴-Androstenedione Δ⁵-Androstenediol Δ⁵-Androstenedione AA-861 Allopregnanolone Alpha-Lipoic acid Ambrisentan AMI-193 Amlodipine besylate Antimycotics Artemisinin Aurothioglucose Bile acids Bithionol Bosentan Bumecaine Cafestol Cephaloridine Cephradine Chlorpromazine Ciglitazone Clindamycin Clofenvinfos Chloroxine Clotrimazole Colforsin Corticosterone Cyclophosphamide Cyproterone acetate Demecolcine Dexamethasone DHEA DHEA-S Dibunate sodium Diclazuril Dicloxacillin Dimercaprol Dinaline Docetaxel Docusate calcium Dodecylbenzenesulfonic acid Dronabinol Droxidopa Eburnamonine Ecopipam Enzacamene Epothilone B Erythromycin Famprofazone Febantel Felodipine Fenbendazole Fentanyl Flucloxacillin Fluorometholone Griseofulvin Haloprogin Hetacillin potassium Hyperforin (Hypericum perforatum) Indinavir sulfate Lasalocid sodium Levothyroxine Linolenic acid LOE-908 Loratadine Lovastatin Meclizine Methacycline Methylprednisolone Metyrapone Mevastatin Mifepristone Nafcillin Nicardipine Nicotine Nifedipine Nilvadipine Nisoldipine Norelgestromin Omeprazole Orlistat Oxatomide Paclitaxel Phenobarbital Piperine Plicamycin Prednisolone Pregnanolone Pregnenolone Pregnenolone 16α-carbonitrile Proadifen Progesterone Reserpine Reverse triiodothyronine Rifampicin Rifaximin Rimexolone Riodipine Ritonavir Simvastatin Sirolimus Spironolactone Spiroxatrine SR-12813 Suberoylanilide Sulfisoxazole Suramin Tacrolimus Tenylidone Terconazole Testosterone isocaproate Tetracycline Thiamylal sodium Thiothixene Thonzonium bromide Tianeptine Troglitazone Troleandomycin Tropanyl 3,5-dimethulbenzoate Zafirlukast Zearalanol

Antagonists	Ketoconazole

RAR

Agonists	9CDHRA 9-cis-Retinoic acid (alitretinoin) AC-261066 AC-55649 Acitretin Adapalene all-trans-Retinoic acid (tretinoin) AM-580 BMS-493 BMS-753 BMS-961 CD-1530 CD-2314 CD-437 Ch-55 EC 23 Etretinate Fenretinide Isotretinoin Palovarotene Retinoic acid Retinol (vitamin A) Tamibarotene Tazarotene Tazarotenic acid TTNPB

Antagonists	BMS-195614 BMS-493 CD-2665 ER-50891 LE-135 MM-11253

RXR

Agonists	9CDHRA 9-cis-Retinoic acid (alitretinoin) all-trans-Retinoic acid (tretinoin) Bexarotene CD 3254 Docosahexaenoic acid Fluorobexarotene Isotretinoin LG-100268 LG-101506 LG-100754 Retinoic acid Retinol (vitamin A) SR-11237

Antagonists	HX-531 HX-630 LG-100754 PA-452 UVI-3003

SHR

See here instead.

VDR

Agonists	7-Dehydrocholesterol 22-Oxacalcitriol 25-Hydroxyergocalciferol Alfacalcidol Calcifediol Calciferol Calcipotriol Calcitriol Cholecalciferol (vitamin D₃) Dihydrotachysterol Doxercalciferol EB-1089 Eldecalcitol Ercalcidiol Ercalcitriol Ergocalciferol (vitamin D₂) Lithocholic acid Paricalcitol Tacalcitol

Agonists	Dextrothyroxine GC-1 Levothyroxine Liothyronine Thyroxine Tiratricol Triiodothyronine

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