Substituted 2,3,4,9-tetrahydro-1H-carbazole-1-acetic acid derivatives and methods for their preparation and use are disclosed. The compounds are useful analgesic and antiinflammatory agents.
Structure-activity relationships among analogues of pemedolac, cis-1-ethyl-1,3,4,9-tetrahydro-4-(phenylmethyl)pyrano[3,4-b]indole-1-acetic acid, a potent analgesic agent
作者:Dominick Mobilio、Leslie G. Humber、Alan H. Katz、Christopher A. Demerson、Philip Hughes、Robert Brigance、Kimberly Conway、Uresh Shah、Gail Williams
DOI:10.1021/jm00119a024
日期:1988.11
The syntheses of analogues of pemedolac (cis-1-ethyl-1,3,4,9-tetrahydro-4-(phenylmethyl)pyrano[3,4-b]indol e-1-acetic acid), a potentanalgesic, are described. They were tested for analgesic and antiinflammatory effects in vivo and for inhibition of prostaglandin production in vitro. Analysis of structure-activity relationships shows that analgesic activity in this series is associated with 1S-cis
Substituted 2,3,4,9-tetrahydro-1H-carbazole-1- acetic acid derivatives and methods for their preparation and use are disclosed. The compounds are useful analgesic and anti-inflammatory agents. The derivatives are acids of formula I below or their salts.
In formula (I) R1, R2, R3, R4, R5 and R6 are hydrogen or lower alkyl or R3 and R4 are joined together to form (CH2)m or R5 and R6 are joined together to form
R8 and R10 are independently hydrogen, lower alkyl or halogen, R9 is hydrogen or lower alkyl, m is 2 to 3 and n is 2 to 4.
Compounds of formula
[wherein R¹ , R², R³, R⁴, R⁵ and R⁶ are hydrogen or lower alkyl or R³ and R⁴ are joined together to form (CH₂)m or R⁵ and R⁶ are joined together to form
-CH=CH-CH=CH-, (CH₂)n
-CH=CH-O- or -CH=CH-S-
m is 2 or 3, n is 2 to 4 and R⁷ is lower alkyl] are intermediates for substituted 2,3,4,9-tetrahydro-1H-carbazole-1-acetic acid derivatives useful as analgesics and anti-inflammatory agents.