6-(2-amino-5-(trifluoromethyl)pyridin-4-yl)-N-((tetrahydro-2H-pyran-4-yl)methyl)pyrazin-2-amine 、
吡啶 、
4-氢吡喃-4-甲酰氯 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以lyophilized providing tetrahydro-pyran-4-carboxylic acid (4-{6-[(tetrahydro-pyran-4-ylmethyl)-amino]-pyrazin-2-yl}-5-trifluoromethyl-pyridin-2-yl)-amide (5.9 mg) as its trifluoroacetic acid salt的产率得到tetrahydro-pyran-4-carboxylic acid (4-{6-[(tetrahydropyran-4-ylmethyl)-amino]-pyrazin-2-yl}-5-trifluoromethyl-pyridin-2-yl)-amide