1-METHYLETHYL (.ALPHA.R,.GAMMA.S)-.ALPHA.-METHYL-.GAMMA.-((4-(1-METHYLETHOXY)-1,4-DIOXOBUTYL)AMINO)(1,1'-BIPHENYL)-4-PENTANOATE
1-methylethyl (.alpha.r,.gamma.s)-.alpha.-methyl-.gamma.-((4-(1-methylethoxy)-1,4-dioxobutyl)amino)(1,1'-biphenyl)-4-pentanoate