1394-85-0 20421-02-7 31774-33-1 Abikoviromycin Cyclopent(b)oxireno(c)pyridine, 7-ethylidene-1a,2,3,7-tetrahydro-, (1aR,7E,7aS)- Cyclopent(b)oxireno(c)pyridine, 7-ethylidene-1a,2,3,7-tetrahydro-, (1aR-(1aR*,7E,7aS*))- Cyclopent(b)oxireno(c)pyridine, 7-ethylidene-1a,2,3,7-tetrahydro-, (E)-(1aS,7aR)- Latumcidin SF-973A