18658-41-8 25350-22-5 Frangulanine Pentanamide, 2-(dimethylamino)-3-methyl-N-(3-(1-methylethyl)-7-(2-methylpropyl)-5,8-dioxo-2-oxa-6,9-diazabicyclo(10.2.2)hexadeca-10,12,14,15-tetraen-4-yl)-, (3R-(3R*,4S*(2S*,3S*),7S*))-