Anti-inflammatory activities of several 9 alpha-halo derivatives of adrenal steroids

Autor: Frank M. Singer, Aleck Borman
Rok vydání: 1956
Předmět:
Zdroj: Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.). 92(1)
ISSN: 0037-9727
Popis: SummaryThe anti-inflammatory properties of a number of 9 α-halo-11 β-hydroxy steroid derivatives have been compared with some of their halogen-free analogues. The substitution of a fluorine atom at the 9 α-position enhances activity. The presence of various hydroxyl groups in the steroid molecule is essential for maximum anti-inflammatory effect. Hydroxylation at the 17 α-position results in a steroid with increased anti-inflammatory activity. A considerably greater response is demonstrated by the introduction of a 21-hydroxyl group, while maximum activity is achieved by the presence of both 17 α- and 21-hydroxyl groups. The most active compound tested, containing a 9 α-fluorine atom and hydroxyl groups at carbon positions 11 β, 17 α, and 21. was fluoro F acetate. This steroid is approximately 13 times as potent an anti-inflammatory agent as E or F acetate.
Databáze: OpenAIRE