4'-amino-3'-trifluoromethyl-biphenyl-4-carbonitrile 、
alpha4,3-异亚丙基异吡哆醛 以gave the light yellow solid 3′-trifluoromethyl-4′-[(2,2,8-trimethyl-4H-[1,3]dioxino[4,5-c]pyridin-5-ylmethyl)-amino]-biphenyl-4-carbonitrile (36) (70 mg, 40% yield)的产率得到3'-trifluoromethyl-4'-[(2,2,8-trimethyl-4H-[1,3]dioxino[4,5-c]pyridin-5-ylmethyl)-amino]-biphenyl-4-carbonitrile