Tetrahedron Letters p. 6481 - 6484 (1990)
Update date:2022-08-04
Topics:
Walker, Donald G.
Activation of the title acid 1 as acyl derivatives of 1-methyl-5-mercaptotetrazole (13) and 2-methyl-5-mercapto-1,3,4-thiadiazole (9,14) and subsequent acylation of penultimate 4 (X=Cl, I) gave good yields of cefepime sulfate 5.
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