In another embodiment of this invention {HEAD ~ the compounds} of formula are selected from {TAIL ~ the group} consisting of the final compounds of Examples 2, 4, 5, 6, 8, 9, 10, 11, and 14, and the free base form of the final compounds of Examples 15, 19, 20, 22, 25, and 26 
In another embodiment of this invention { HEAD ~ the compounds } of formula are selected from { TAIL ~ the group } consisting of the final compounds of Examples 2 , 4 , 5 , 6 , 8 , 9 , 10 , 11 , and 14 , and the free base form of the final compounds of Examples 15 , 19 , 20 , 22 , 25 , and 26
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH