Pentacyclic compounds, intermediates, processes, compositions, a

Details Pentacyclic compounds, intermediates, processes, compositions, a Pentacyclic compounds, intermediates, processes, compositions, a

1999-11-09

2000-10-17

Huang, Evelyn Mei

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

514321, 514422, 514434, 514453, 514284, 5142328, 544125, 544145, 544146, 544150, 546196, 546197, 546198, 546200, 546202, 546 61, 546 62, 546 70, 548421, 548517, 548527, 549 24, 549383, 549384, A61K 31453, C07D40512, A61P 530

Patent

active

061332887

ABSTRACT:
The present invention provides compounds of formula I and II: ##STR1## wherein X is --O--, --S--, or --NR.sup.5 --;

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March J. Advanced Organic Chemistry. Second Edition. pp. 108-111, 1977.
Fujisaki, et al Nippon Kagaku Kaishi, 739-42 (1979).
Triphenylmethyl, XXXIII, Quinoidation in the Triarylmethyls, M. Gomberg, and F.F. Blicke, J.A.C.S., 45, 1765-79 (1923).
Halochromic Salts From Some Triarylmethylthioglycolic Acids, M. Gomberg, and W. E. Gordon, J.A.C.S. 57, 119-24 (1935).

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