| http://www.w3.org/ns/prov#value | - Compounds according to the present invention may be prepared by a process comprising coupling of an amine of formula III with a triflate or halide, such as a bromide, iodide, fluoride, chloride, of formula II, as shown in Scheme 1; or alternatively by a process comprising coupling of an amine of formula IIa with a triflate or halide, such as a bromide or iodide, of formula IIIa, as shown in Scheme
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