Polyheterocyclic compounds

Details Polyheterocyclic compounds Polyheterocyclic compounds

1997-03-21

1999-11-30

Trinh, Ba K.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

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

514461, 549 60, 549472, 549473, A61K 3134, A61K 3138, C07D30736, C07D30740

Patent

active

059943947

ABSTRACT:
The present invention relates to a group of polyheterocyclic compounds covered by the following formula: ##STR1## wherein each of X.sub.1, X.sub.2, X.sub.3, and X.sub.4, independently, is O, S, NH, or N(C.sub.1-6 alkyl), but one of them must be O, NH, or N(C.sub.1-6 alkyl); each of R.sub.1, R.sub.2, R.sub.5, and R.sub.6, independently, is H or a substituent (e.g., halogen, CN, NO.sub.2, or C.sub.1-4 haloalkyl), but at least one of them must be a substituent; each of R.sub.3 and R.sub.4, independently, is H, C.sub.1-6 alkyl, CHO, CH.sub.2 OH, or CH.sub.2 NH.sub.2 ; and each of m and n, independently, is 0 or 1.

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