Chromanes and their pharmaceutical compositions and methods

Details Chromanes and their pharmaceutical compositions and methods Chromanes and their pharmaceutical compositions and methods

1989-06-16

1991-05-14

Lee, Mary C.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

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

5142305, 514256, 514307, 514314, 514337, 514374, 514397, 514414, 514444, 514458, 544 99, 544101, 544105, 544331, 546147, 546152, 546148, 546174, 546269, 548235, 548236, 548454, 549 58, 549 60, 549408, 549410, A61K 31355, C07D31172

Patent

active

050156616

ABSTRACT:
Racemic Compounds of the formula ##STR1## A is --C.tbd.C--R.sub.6, --CH.sub.2 --CH.sub.2 --R.sub.7 or ##STR2## R.sub.1 is hydrogen or lower alkanoyl, R.sub.2, R.sub.3, and R.sub.4 independently are hydrogen or lower alkyl,

REFERENCES:
patent: 4572912 (1986-02-01), Yoshioka et al.
patent: 4694090 (1987-09-01), Shiono et al.
patent: 4752646 (1988-06-01), Cohen
patent: 4824971 (1989-04-01), Cohen
patent: 4879395 (1989-11-01), Coffen et al.
patent: 4914217 (1989-01-01), Ka-kong Chan et al.
Chem. Abstracts, vol. 112 (13), 118862s (1990).

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