The present invention relates to a process for the preparation of a compound of formula I,
wherein R
1
is C
1-6
-alkyl and R
2
is hydrogen or halogen.
(R)-2-phenyl propionic acid derivatives of formula I are key intermediates in the synthesis of 5-substituted-pyrazine or pyridine glucokinase activators of the formula Xa,
which have the potential to be useful for the treatment and/or prophylaxis of type II diabetes.
本发明涉及一种制备式I化合物的方法,其中R1为C1-6烷基,R2为氢或卤素。式I的(R)-
2-苯基丙酸衍
生物是合成式Xa的5-取代
吡嗪或
吡啶葡萄糖激酶激活剂的关键中间体,这些激活剂有可能用于治疗和/或预防II型糖尿病。