C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/279.6
C07D 213/64 (2006.01) C07D 213/80 (2006.01) C07D 213/85 (2006.01)
Patent
CA 1198113
ABSTRACT OF THE DISCLOSURE 2-(R1O)-3-Q-5-PY-6-R-pyridine (I) or pharmaceutically acceptable acid-addition salts thereof are useful cardiotonics, where R1 is methyl or ethyl, R is hydrogen or lower-alkyl, PY is 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents, and Q is hydrogen, chloro or COOR' where R1 is lower-alkyl.
440801
Lesher George Y.
Opalka Chester J. Jr.
Singh Baldev
Fetherstonhaugh & Co.
Sterling Drug Inc.
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