NC49866
9,12-Epoxy-1,4-methano-1H,3H,8H-2,7-dioxa-6-thia-5,12a,14,17,18a-pentaazacyclohexadeca[def]biphenylene-13,15,16,18(14H,17H)-tetrone, 10-(acetyloxy)-4,5,9,10,11,12,15a,15b,18b,18c-decahydro-3-(hydroxymethyl)-15a,15b-dimethyl-, 6,6-dioxide, (1R,3S,4S,9R,10S,12R,15aS,15bR,18bR,18cS)-