144163-15-5 2,5,10,13-Tetraazatetradecanedioic acid, 7,7-difluoro-3,12-bis(1-methylethyl)-4,8,11-trioxo-6,9-bis(phenylmethyl)-, bis[(6-methyl-2-pyridinyl)methyl] ester, [3S-(3R*,6R*,9R*,12R*)]- AIDS-043387 AIDS043387 Bis(Val-NH)-diF-acetone deriv.