Antibiotic crystalline epimer

Details Antibiotic crystalline epimer Antibiotic crystalline epimer

1979-05-01

1981-02-24

Randolph, John D.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

42424852, C07D26512

Patent

active

042529530

ABSTRACT:
Crystalline D-diammonium salt represented by the formula ##STR1## a useful pharmaceutical form of the corresponding antibiotic diacid is provided and processes for the preparation thereof.

REFERENCES:
patent: 4124762 (1978-11-01), Haviv et al.
patent: 4125715 (1978-11-01), Haviv et al.
patent: 4138486 (1979-02-01), Narisada et al.
patent: 4148997 (1979-04-01), Haviv et al.
Kim et al, Tetrahedron Letters, No. 5, pp. 409-412, (1978).
Lednicer et al, The Organic Chemistry of Drug Synthesis, pp. 418 to 420 and frontispage, John Wiley and Sons, NY, (1977).

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