The present invention relates to the process of reduction of compound of formula (II) by using a transition metal complex (Z) as a catalyst for hydrogenation reactions to get compound of formula (I). More particularly, the present invention relates to an improved process for the preparation of a compound (I) (as described herein) or a salt thereof; comprising hydrogenation of the compound (II) (as described herein) using a transition metal complex catalyst (Z).
本发明涉及利用过渡
金属配合物(Z)作为氢化反应催化剂,通过还原式化合物(II)的过程,以获得式合物(I)。更具体地,本发明涉及一种改进的制备化合物(I)(如本文所述)或其盐的方法;包括使用过渡
金属配合物催化剂(Z)对化合物(II)(如本文所述)进行氢化。