Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Patent
1978-06-19
1980-09-09
Tanenholtz, Alvin E.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing heterocyclic carbon compound having only o, n, s,...
435886, C12P 1718
Patent
active
042218705
ABSTRACT:
This invention provides a process for the preparation of salts of the .beta.-lactamase inhibitory antibiotics MM4550A, MM13902 and MM17880, which are the compounds of the formulae (I)-(III), respectively: ##STR1## which process comprises cultivating a strain of Streptomyces gedanensis and isolating a salt of at least one of MM4550A, MM13902 and MM17880.
REFERENCES:
patent: 3919415 (1975-11-01), Butterworth et al.
patent: 3928569 (1975-12-01), Umezawa et al.
Hata et al., Journal of Antibiotics, vol. XXV, No. 8, pp. 473-474 (1972).
American Type Culture Collection Catalogue of Strains I, 12th Ed. p. 129 (1976).
Beecham Group Limited
Tanenholtz Alvin E.
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