The substituted C 076 compounds are prepared by various procedures depending upon {HEAD ~ the position} of {TAIL ~ the reaction site}, and the particular C 076 compound being substituted 
of
The substituted C 076 compounds are prepared by various procedures depending upon { HEAD ~ the position } of { TAIL ~ the reaction site } , and the particular C 076 compound being substituted
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH