Examples of these substituted acyl substituents include alkylsulfonyl benzoyl, {HEAD ~ arysulfonylbenzoyl}, halobenzoyl, cyanobenzoyl, {TAIL ~ nitrobenzoyl}, and trifluoroalkylbenzoyl 
Examples of these substituted acyl substituents include alkylsulfonyl benzoyl , { HEAD ~ arysulfonylbenzoyl } , halobenzoyl , cyanobenzoyl , { TAIL ~ nitrobenzoyl } , and trifluoroalkylbenzoyl
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH