(R)-4-isobutyl-3-piperidin-4-yl-1-(tetrahydro-pyran-4-yl)-imidazolidin-2-one 、
N-cyclopropyl-4-(5-formyl-6-methyl-pyridin-2-yloxy)-benzamide 、
三乙酰氧基硼氢化钠 在
crude material 、 silica gel 、
甲醇乙酸乙酯 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以to afford COMPOUND 318 as a white solid (37 mg, 31%)的产率得到N-Cyclopropyl-4-(5-{4-[(R)-5-isobutyl-2-oxo-3-(tetrahydro-pyran-4-yl)-imidazolidin-1-yl]-1-piperidin-1-ylmethyl}-6-methyl-pyridin-2-yloxy)-benzamide