作者:Hitoshi Ouchi、Aya Asahina、Tomohiro Asakawa、Makoto Inai、Yoshitaka Hamashima、Toshiyuki Kan
DOI:10.1021/ol500529w
日期:2014.4.4
Practical total syntheses of acromelic acids A (1) and B (2), which have potent neuro-excitatory activity, were accomplished in 13 (36% total yield) and 17 steps (6.9% total yield), respectively, from 2,6-dichloropyridine (8). Regioselective transformation of symmetric 8 provided nitroalkenes 15 and 16. The pyrrolidine ring was efficiently constructed by Ni-catalyzed asymmetric conjugate addition followed by intramolecular reductive amination.