C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/211, 260/246
C07D 471/20 (2006.01) A61K 31/495 (2006.01) C07C 51/16 (2006.01) C07C 59/185 (2006.01) C07C 59/88 (2006.01) C07D 213/55 (2006.01) C07D 471/10 (2006.01)
Patent
CA 1255304
PC 6846 TETRACYCLIC SPIRO-HYDANTOIN ALDOSE REDUCTASE INHIBITORS Abstract Novel biologically-active tetracyclic spiro- hydantoin derivatives which are potent inhibitors of aldose reductase and useful in treating diabetic complications are disclosed. Pharmaceutical com- positions containing the novel compounds and a method of treating chronic diabetic complications are also disclosed. A preferred compound is 9'-chloro-5',6'-dihydro-2'-phenyl-spiro[imidazolidine- 5,7'-7'H-pyrido(1,2,3-de)quinoxaline]2,3',4-trione.
488544
Limited Pfizer
Smart & Biggar
LandOfFree
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