Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Parasitic organism or component thereof or substance...
Patent
1974-10-29
1979-01-23
Schenkman, Leonard
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Parasitic organism or component thereof or substance...
424246, 42424854, 42424855, 424250, A61K 31455
Patent
active
041361873
ABSTRACT:
4,5-Dihydropyridines bearing an N,N-disubstituted amino group in the 2-position, carbonyl functions in the 3- and 5-positions and being optionally substituted in the 6-position by lower alkyl or phenyl and, in the 4-position by lower alkyl, phenyl, substituted phenyl or a heterocyclic group, are antihypertensive agents and coronary vessel dilators. The compounds, of which 2-pyrrolidino-6-methyl-4-(3-nitrophenyl)-4,5-dihydropyridine-3,5-dicarboxy lic acid 3,5-diethyl ester is a representative embodiment, are prepared through condensation of an ylideneacetoacetic acid ester and a substituted 3,3-diaminoacrylate.
REFERENCES:
patent: 3441648 (1969-04-01), Loev et al.
patent: 3485847 (1969-12-01), Bossert et al.
patent: 3488359 (1970-01-01), Bossert et al.
patent: 3708489 (1973-01-01), Rucker et al.
patent: 3773773 (1973-11-01), Bossert
Bossert Friedrich
Meyer Horst
Stoepel Kurt
Vater Wulf
Bayer Aktiengesellschaft
Schenkman Leonard
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