ith a suitably substituted compound of formula (XXXXVII), in the presence of a base such as potassium tert-butoxide, sodium hydride, and the like, in an organic solvent such as THF, diethyl ether, and the like, to yield the corresponding compound of formula (XXXXVIII). [0166] The compound of formula (XXXXVIII) is reacted with the compound of formula (XXXXIX), in the presence of a coupling agent su