| http://www.w3.org/ns/prov#value | - In one embodiment of the compounds of Formula Ib, U is CR18, wherein R18 is other than hydrogen, n is 1, E-R15 is N or CH, K???R16 is N or CH and G-R17 is N or CH. In another embodiment, U is CR18, wherein R18 is other than hydrogen, n is 1, and E-R15, K???R16 and G-R17 are CH. In another embodiment, U is CR18, wherein R18 is other than hydrogen, Z is CR18, V and W are CH, n is 1, and E-R15, K???R
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