摘要:
Difficidin and derivative antibacterial compounds of the formula: ##STR1## where R.sub.a and R.sub.b are members independently selected from the group consisting of hydrogen; alkali metal and alkaline earth metal cations; ammonium; and substituted ammonium; and R.sup.1 is hydrogen or hydroxy.
摘要:
Process for the preparation of difficidin and derivative antibacterial compounds of the formula: ##STR1## where R.sub.a and R.sub.b are members independently selected from the group consisting of hydrogen; alkali metal and alkaline earth metal cations; ammonium; and substituted ammonium; and R.sup.1 is hydrogen or hydroxy.
摘要:
The present invention relates to novel antibacterial compounds referred to herein generally as a thermal isomer of difficidin and thermal isomer of oxydifficidin. Also disclosed is process for preparing, isolating and purifying said compounds.
摘要:
There is disclosed a new antibiotic agent, A73A, produced by Streptomyces viridifaciens MA-4864 (ATCC 31495) under suitable conditions. Said antibiotic shows antibacterial and growth-permittant activity.
摘要:
There is disclosed a new antibiotic agent, A73A, produced by Streptomyces viridifaciens MA-4864 (ATCC 31495) under suitable conditions. Said antibiotic shows antibacterial and growth-permittant activity.
摘要:
The antibiotic Tunicamycin is produced by fermenting a Tunicamycin-producing strain of Streptomyces (Streptomyces griseus ATCC 31591) under controlled conditions in a suitable nutrient medium and isolating the antibiotic so produced from the fermentation medium.