The present application relates to a novel and improved process for preparing the compound 2-4-[2-([2-(4-chlorophenyl)-1,3-thiazol-4-yl]methyl}sulphanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl]phenoxy}ethyl-L-alanyl L-alaninate monohydrochloride of the formula (I)
to novel precursors for its preparation, and to the preparation and use of crystal modification I of 2-4-[2-([2-(4-chlorophenyl)-1,3-thiazol-4-yl]methyl}sulphanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl]phenoxy}-ethyl-L-alanyl L-alaninate monohydrochloride of the formula (I).
本申请涉及一种新型和改进的制备化合物2-4-[2-([2-(4-
氯苯基)-1,3-
噻唑-4-基]甲基}
硫醇)-3,5-二
氰基-6-(
吡咯烷-1-基)
吡啶-4-基]苯氧基}乙基-
L-丙氨酸-
L-丙氨酸单盐酸盐的过程,以及其制备的新型前体,以及2-4-[2-([2-(4-
氯苯基)-1,3-
噻唑-4-基]甲基}
硫醇)-3,5-二
氰基-6-(
吡咯烷-1-基)
吡啶-4-基]苯氧基}-乙基-
L-丙氨酸-
L-丙氨酸单盐酸盐的晶体形态I的制备和使用。