C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/278.1, 260/2
C07D 211/90 (2006.01) C07D 401/00 (2006.01) C07D 413/00 (2006.01)
Patent
CA 1196332
ABSTRACT OF THE DISCLOSURE: Novel compounds having vasodilation and hypotensive effects are represented by the formula Image (I) where R1 is halogen, nitro, cyano or lower alkoxy; each of R2 and R3 is lower alkyl, lower haloalkyl, lower alkoxyalkyl, aralkyloxyalkyl, aryloxyalkyl, lower alkenoxyalkyl, N,N-di-lower alkylaminoalkyl, N-lower alkyl-N-aralkylaminoalkyl, piperidylalkyl, 4-lower alkyl piperazinylalkyl, norpholinoalkyl or 1-pyrrolidinylalkyl; R4 is lower alkyl; A is lower alkylene; and R5 is hydrogen, lower alkyl, cycloalkyl of 3 to 7 carbon atoms, or aryl unsubstituted or substituted by one or two substituents selected from halogen, nitro, lower alkyl, lower alkoxy, di-lower alkylamino and cyano. Also disclosed are processes for their preparation.
401301
Harada Nobuo
Miyano Tetsuji
Suzuki Kunio
Banyu Pharmaceutical Co. Ltd.
Marks & Clerk
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