176666-84-5 6-Oxa-13,20-dithia-3,10,17,22,23,24-hexaazatetracyclo(172115,8112,15)tetracosa-5(24),7,12(23),14,19(22),21-hexaene-2,9,16-trione, 4,7,18-trimethyl-11-(1-methylethyl)-, (4R,11R,18R)- Dendroamide A