4-oxo-1,4-dihydronicotinic acid derivatives, salts thereof, and

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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546117, 546122, 546140, 546144, 546147, 546153, 546167, 546193, 546194, 546256, 546257, 546258, 546268, 546269, 546270, 546271, 546272, 546273, 546274, 546275, 546276, 546277, 546278, 546279, 546280, 546281, 546283, 546284, 546298, 544105, 544112, 544113, 544114, 544116, 514335, 544118, 544120, 544122, 544128, 544129, 544182, 544216, 544236, 544237, 544238, 544257, 544264, 544278, 544284, 544333, 544353, 544365, 544405, 514236, 514241, 514242, 514248, 514249, 514252, 514253, 514254, 514256, 514258, 514259,

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046983520

ABSTRACT:
This invention relates to a novel 4-oxo-1,4-dihydronicotinic acid derivative ##STR1## or a salt thereof, wherein R.sup.1 is hydrogen or carboxyl-protecting group;

REFERENCES:
patent: 4115101 (1978-09-01), Carlson
Chemical Abstracts 93:46426s.

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