N-甲基芸香碱 、
4-[(E)-2-cyclopentylvinyl]-1,2,3-trimethoxybenzene 以
neat (no solvent) 为溶剂,
反应 16.0h,
以4.6%的产率得到(1RS,2RS,2aRS,10aSR)-1-cyclopentyl-2-(3,4,5-trimethoxyphenyl)-4,10,10-trimethyl-1,2,2a,4,10,10a-hexahydro-3H-cyclobuta[4,5]pyrano[3,2-c]quinolin-3-one