1,1-DIMETHYLETHYL .ALPHA.-(4-CYANO-2-NITROPHENYL)-4-ETHYL-3-IODO-.GAMMA.,.GAMMA.-DIMETHYL-.BETA.-OXOBENZENEBUTANOATE
1,1-dimethylethyl .alpha.-(4-cyano-2-nitrophenyl)-4-ethyl-3-iodo-.gamma.,.gamma.-dimethyl-.beta.-oxobenzenebutanoate