Tetracyclic indole derivatives

Details Tetracyclic indole derivatives Tetracyclic indole derivatives

C - Chemistry, Metallurgy

07

D

167/222, 167/237

C07D 487/06 (2006.01) A61K 31/415 (2006.01) A61K 31/505 (2006.01)

Patent

CA 1289143

ABSTRACT TITLE : NEW-TETRACYCLIC INDOLE DERIVATIVES. Compounds of the formula I : Image I wherein R1 =H, CH3; m = 0,1; R2 = R3 = H or R2, R3 = bond, R4 = C1-C4 hydrocarbon, n = 1 or 2 and their pharmaceutically acceptable salts are antihypertensive agents. Their preparation and pharmaceutical compositions containing them are also described.

542627

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