(S,aR)-1-(1,3-dimethyl-2-oxo-1,2-dihydro-quinoline-4-carbonyl)-pyrrolidine-2-carboxylic acid methyl ester 、
甲基丙烯腈 以
四氢呋喃 为溶剂,
反应 2.0h,
以93%的产率得到(S)-1-((1S,2aR,8bR)-1-cyano-1,2a,4-trimethyl-3-oxo-2,2a,3,4-tetrahydro-1H-cyclobuta[c]quinoline-8b-carbonyl)-pyrrolidine-2-carboxylic acid methyl ester