Asymmetric synthesis of (3S,1′S)-3-(1-amino-2,2,2-trifluoroethyl)-1-(alkyl)-indolin-2-one derivatives by addition of (S)-N-t-butylsulfinyl-3,3,3-trifluoroacetaldimine to 1-(alkyl)-indolin-2-ones

1. Qian, P.
2. Xie, C.
3. Wu, L.
4. Mei, H.
5. Soloshonok, V.A.
6. Han, J.
7. Pan, Y.