S-</`\/OH>_pp<\CH3_(x.5,y-1.5,N0)Cl^->_pN^+<_pp_p>|\//\N||<\CH3>`/N`\\<`|>`/H2N

`/<|NH2>`\\N`|<`\H3C>//N\||\/N^+`||<_(x-.7,y-1.2,N0)Cl^->_pS_p<-/-OH>_pp<_(a-54)CH3>_p