Process for producing 7-(D(-)-.alpha.-(4-ethyl-2,3-dioxo-1-piper

Details Process for producing 7-(D(-)-.alpha.-(4-ethyl-2,3-dioxo-1-piper Process for producing 7-(D(-)-.alpha.-(4-ethyl-2,3-dioxo-1-piper

1979-08-24

1981-12-08

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

424246, 544026, C07D50137

Patent

active

043049095

ABSTRACT:
The N,N-dimethylacetamide adduct of 7-[D(-)-.alpha.-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-.alpha.-(4-hyd roxyphenyl)acetamido]-3-[5-(1-methyl-1,2,3,4-tetrazolyl)thiomethyl]-.DELTA. .sup.3 -cephem-4-carboxylic acid, a process for the production thereof, and a process for producing said acid and a pharmaceutically acceptable salt thereof through said adduct.

REFERENCES:
patent: 3641021 (1972-02-01), Ryan
patent: 3781282 (1973-12-01), Garbrect
patent: 3954745 (1976-05-01), Jackson et al.
patent: 4064345 (1977-12-01), Kaplan
patent: 4100008 (1978-07-01), Toshiyara
patent: 4103008 (1978-07-01), Toshiyara et al.
patent: 4112090 (1978-09-01), Saikawa et al.
patent: 4117126 (1978-09-01), Yamara et al.
patent: 4145418 (1979-03-01), Kuwara et al.

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