Harness for working animal
Patent
1975-10-30
1977-09-13
Rizzo, Nicholas S.
Harness for working animal
C07D50118, C07D50136
Patent
active
040481557
ABSTRACT:
A process for introducing an alkoxy group into the 7.alpha.-position of a 7-amino-3-cephem-4-carboxylic acid derivative which comprises oxidizing a salt of 7-benzylideneamino-3-cephem-4-carboxylic acid derivative and reacting the product with an alkanol.
The 7.alpha.-alkoxy-3-cephem-4-carboxylic acid derivatives obtained by the present invention are useful as intermediates for the synthesis of antibacterial agents.
REFERENCES:
patent: 3775410 (1973-11-01), Christensen et al.
patent: 3840532 (1974-10-01), Hayes et al.
patent: 3875146 (1975-04-01), Christensen et al.
Ando Akiko
Fukushima Masami
Nakao Hideo
Yanagisawa Hiroaki
Rizzo Nicholas S.
Sankyo Company Limited
Wheeler David E.
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