(E)-(S)-4-(Benzyl-{(E)-4-[(Z)-hydroxyimino]-pent-2-enoyl}-amino)-5-methyl-hex-2-enoic acid ethyl ester 以
溶剂黄146 为溶剂,
反应 4.0h,
以77%的产率得到ethyl (3S,3aR,4R,7aR)-2-benzyl-6-methyl-5-oxido-1-oxo-3-propan-2-yl-3a,4,7,7a-tetrahydro-3H-pyrrolo[3,4-c]pyridin-5-ium-4-carboxylate