NC109580
2-[3-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-4,5-dihydro-6-[(2-methylpropyl)amino]-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-3-yl]-2-propyn-1-yl]-1H-isoindole-1,3(2H)-dione
570413-65-9