Prednylidene

Prednylidene
Clinical data
Other names	(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-16-methylidene-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-3-one
ATC code	H02AB11 (WHO) ;
Identifiers
	IUPAC name (11β)-11,17,21-trihydroxy-16-methylenepregna-1,4-diene-3,20-dione;
CAS Number	599-33-7 N;
PubChem CID	20055008;
DrugBank	DB13208 Y;
ChemSpider	16735979 Y;
UNII	IF8PQP966U;
CompTox Dashboard (EPA)	DTXSID50208610 ;
ECHA InfoCard	100.009.060
Chemical and physical data
Formula	C22H28O5
Molar mass	372.461 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES OCC(=O)[C@@]2(O)C(=C)C[C@H]3[C@@H]4CC\C1=C\C(=O)\C=C/[C@]1(C)[C@H]4[C@@H](O)C[C@]23C;
	InChI InChI=1S/C22H28O5/c1-12-8-16-15-5-4-13-9-14(24)6-7-20(13,2)19(15)17(25)10-21(16,3)22(12,27)18(26)11-23/h6-7,9,15-17,19,23,25,27H,1,4-5,8,10-11H2,2-3H3/t15-,16-,17-,19+,20-,21-,22-/m0/s1 Y; Key:WSVOMANDJDYYEY-CWNVBEKCSA-N Y;
	NY (what is this?) (verify)

Prednylidene is a glucocorticoid¹ for systemic use.

Substitution at position 16 also leads to more potent corticosteroids. The additional steric bulk introduced by such substituents adjacent to the dihydroxyacetone side chain also protects that moiety against metabolic degradation.

References

Buttgereit F, Brand MD, Burmester GR (July 1999). "Equivalent doses and relative drug potencies for non-genomic glucocorticoid effects: a novel glucocorticoid hierarchy". Biochem. Pharmacol. 58 (2): 363–8. doi:10.1016/S0006-2952(99)00090-8. PMID 10423179.

[pmid10423179-1] Buttgereit F, Brand MD, Burmester GR (July 1999). "Equivalent doses and relative drug potencies for non-genomic glucocorticoid effects: a novel glucocorticoid hierarchy". Biochem. Pharmacol. 58 (2): 363–8. doi:10.1016/S0006-2952(99)00090-8. PMID 10423179.

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