A process 1 wherein R1 is pyridin 2 ylmethyl or benzyl, where said {HEAD ~ benzyl} is optionally substituted with {TAIL ~ up to two fluoro}, chloro or trifluoromethyl; and R2 is 2,2,2 trifluoroethyl 
A process 1 wherein R1 is pyridin 2 ylmethyl or benzyl , where said { HEAD ~ benzyl } is optionally substituted with { TAIL ~ up to two fluoro } , chloro or trifluoromethyl ; and R2 is 2,2,2 trifluoroethyl
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH