Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Patent
1983-06-30
1986-07-22
Kepplinger, Esther M.
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 1716
Patent
active
046019847
ABSTRACT:
There are provided antibiotics X-14873 A, G and H of the formulas ##STR1## wherein for X-14873A, R.sub.1 is CO.sub.2 H and R.sub.2 is ##STR2## for X-14873G, R.sub.1 is hydrogen and R.sub.2 is ##STR3## and for X-14873H, R.sub.1 is hydrogen and R.sub.2 is ##STR4## The compounds exhibit antibiotic activity. Also disclosed is a process to produce the above compounds.
REFERENCES:
patent: 4033823 (1977-07-01), Liu et al.
Liu Chao-Min
Tresner Homer D.
Westley John
Hoffmann-La Roche Inc.
Kepplinger Esther M.
Leon Bernard S.
Mazza Richard J.
Saxe Jon S.
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