４−アミノ−５−ビフェニル−４−イル−２−ヒドロキシメチル−２−メチル−ペンタン酸化合物を調製する方法

摘要

The invention provides processes for preparing intermediates useful for preparing compounds of the formula: or a tautomer or salt thereof, where R1-R5, a, b, X and P2, are as defined in the specification.