Benzamide, N-[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-3-deoxy-3-fluoro-β-D-xylofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]- [ 1555759-30-2 ]