Crystalline 3-hydroxycephalosporin solvates

Details Crystalline 3-hydroxycephalosporin solvates Crystalline 3-hydroxycephalosporin solvates

1979-07-27

1980-12-02

Rizzo, Nicholas S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

424246, C07D50120

Patent

active

042372798

ABSTRACT:
4'-Nitrobenzyl 7-phenoxyacetamide-3-hydroxy-3-cephem-4-carboxylate forms crystalline solvates with acetic acid, propionic acid and methylene chloride. The corresponding 3-hydroxy-3-cephem sulfoxide forms crystalline solvates with acetic acid, propionic acid and methanol. The described solvates allow for facile isolation and purification of 4'-nitrobenzyl 7-phenoxyacetamido-3-hydroxy-3-cephem-4-carboxylate and its 1-oxide.

REFERENCES:
patent: 3947414 (1976-03-01), Tensmeyer
patent: 3947415 (1976-03-01), Tensmeyer
patent: 3957773 (1976-05-01), Barton et al.
patent: 4031084 (1977-06-01), Kukolja et al.
patent: 4044002 (1977-08-01), Hatfield
patent: 4054738 (1977-10-01), Yang
patent: 4060688 (1977-11-01), Chauvette
patent: 4079181 (1978-03-01), Tsuji et al.
patent: 4115643 (1978-09-01), Kukolja et al.

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