Pentacyclic compounds, intermediates, processes, compositions, a

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

1996-08-13

1998-03-10

Ivy, C. Warren

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

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

514422, 514434, 514453, 5142328, 546196, 546197, 546198, 546200, 546202, 548421, 548517, 548527, 549 24, 549383, 549384, 544125, 544145, 544146, 544150, 544153, A61K 31445, A61K 3141, C07D40512, C07D40514

Patent

active

057261865

ABSTRACT:
The present invention provides compounds of formula I: ##STR1## wherein X is --O-- or --S--,

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patent: 5457117 (1995-10-01), Black
patent: 5466830 (1995-11-01), Sabatucci
Walser A et al. J. Heterocycl. Chem. 12 (2), 351-8, 1975.
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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