摘要:
Plastatin, an inhibitor of the enzyme phospholipase A.sub.2, can be prepared by cultivating Penicillium chermesinum under submerged aerobic conditions.
摘要:
Cultivation of a strain of the microorganism Dactylosporangium sp. A.T.C.C. No. 53693, yields the antibiotic substance EM5586 which contains the novel useful components dactylocycline A and dactylocycline B.
摘要:
A compound having the formula ##STR1## can be prepared by enzymatically coupling a compound of the formula ##STR2## with a compound of the formula ##STR3## in the presence of Escherichia coli acylase at a pH of from about 4.0 to about 6.0.