In {TAIL ~ another embodiment} of this invention the compounds of formula are selected from 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 {HEAD ~ Examples} 15, 19, 20, 22, 25, and 26 
In { TAIL ~ another embodiment } of this invention the compounds of formula are selected from 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 { HEAD ~ Examples } 15 , 19 , 20 , 22 , 25 , and 26
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