(+-)-(R*,R*)-N-(3-Chloro-1-sec-butylacetyl)-p-toluenesulfonamide 72676-78-9 Benzenesulfonamide, N-(1-(chloroacetyl)-2-methylbutyl)-4-methyl-, (R*,R*)-(+-)- N-Tosyl-D,L-isoleucine chloromethyl ketone p-Toluenesulfonamide, N-(3-chloro-1-sec-butylacetonyl)-, (R*,R*)-(+-)-