Derivatives of pyridone, their preparation process, the new inte

Details Derivatives of pyridone, their preparation process, the new inte Derivatives of pyridone, their preparation process, the new inte

1996-07-31

1997-10-07

Kumar, Shailendra

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

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

5142355, 5142358, 5142362, 514318, 514343, 544124, 546194, 546276, 546281, 546345, 546351, A61K 3144, C07D40110

Patent

active

056748833

ABSTRACT:
Products of formula (I): ##STR1## in which: R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent:

REFERENCES:
patent: 3494959 (1970-02-01), Schleppnik et al.
patent: 5356911 (1994-10-01), Muller-Gliemann et al.

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