Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1984-09-19
1986-04-15
Daus, Donald G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
544 26, 544 27, C07D25704
Patent
active
045829080
ABSTRACT:
This invention relates to the intermediates of formula ##STR1## wherein A.sub.b is hydroxy (lower) alkylene, amino (lower) alkylene, protected amino (lower) alkylene, lower alkenylene, lower alkylene having an oxo group, or hydroxyimino (lower) alkylene wherein the hydrogen atom of the hydroxyimino group may be replaced with a lower aliphatic hydrocarbon group, and R.sup.3 is carboxy or a protected carboxy group, and a salt thereof.
REFERENCES:
patent: 4286089 (1981-08-01), Berges
patent: 4420477 (1983-12-01), Takaya
patent: 4493834 (1985-01-01), Takaya
Inoue Yoshikazu
Murata Masayoshi
Takaya Takao
Yasuda Nobuyoshi
Benson Robert
Daus Donald G.
Fujisawa Pharmaceutical Co. Ltd.
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