NC42820
1,4,7-Trimethyl 9-[4-[6-[3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-3,6-dihydro-2,6-dioxo-1(2H)-pyrimidinyl]-1-hexyn-1-yl]phenoxy]hexahydro-1,4,7-triazecine-1,4,7(8H)-triacetate