(R)-N-(5-chloro-4-(6-(((tetrahydro-2H-pyran-4-yl)methyl)amino)pyrazin-2-yl)pyridin-2-yl)piperidine-3-carboxamide 、
potassium carbonate 、
2-溴乙基甲基醚 在
三氟乙酸 作用下,
以
二甲基亚砜 为溶剂,
反应 2.0h,
以lyophilized providing (R)-1-(2-methoxy-ethyl)-piperidine-3-carboxylic acid (5-chloro-4-{6-[(tetrahydro-pyran-4-ylmethyl)-amino]-pyrazin-2-yl}-pyridin-2-yl)-amide (10.4 mg) as its trifluoroacetic acid salt as an off-white solid的产率得到(R)-1-(2-methoxy-ethyl)-piperidine-3-carboxylic acid (5-chloro-4-{6-[(tetrahydropyran-4-ylmethy)-amino]-pyrazin-2-yl}-pyridin-2-y)-amide