(4R)-(-)-Dihydrokikumycin B (4S)-(+)-Dihydrokikumycin B 1H-Pyrrole-2-carboxamide, 4-(((5-amino-3,4-dihydro-2H-pyrrol-2-yl)carbonyl)amino)-N-(3-amino-3-iminopropyl)-1-methyl-, (S)- 47307-17-5 Dihydrokikumycin B