1,4-Dioxa-8,11-diazacyclohexadec-13-ene-2,5,9,12-tetrone, 10-((3-chloro-4-methoxyphenyl)methyl)-6-methyl-16-(1-methyl-3-phenyl-2-propenyl)-3-(2-methylpropyl)- 124689-64-1 Cryptophycin 46 Cryptophycin-46