Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-04-05
1991-12-03
Rizzo, Nicholas S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540222, 540225, 540227, 540300, 540301, 540310, 540318, C07D49908
Patent
active
050701940
ABSTRACT:
This invention provides a method of producing a .beta.-lactam derivative represented by the formula (I): ##STR1## said method consisting essentially of the step of reacting a .beta.-lactam derivative represented by the formula (II): ##STR2## with a phenol in a reaction system which consists essentially of said .beta.-lactam derivative of formula (II) and said phenol.
REFERENCES:
patent: 4925934 (1990-05-01), Taniguchi et al.
Kameyama Yutaka
Kikuchi Ryo
Nagao Shigemitsu
Saito Nori
Sasaoka Michio
Otsuka Kagaku Kabushiki Kaisha
Rizzo Nicholas S.
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