Tsuji R.A. Nishida An efficient synthetic approach to optically active β-carboline derivatives via Pictet–Spengler reaction promoted by trimethylchlorosilane
// Tetrahedron Asymmetry. - 2003. - Vol. 14, № 2. - P. 177 - 180.
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http://dx.doi.org/10.1016/S0957-4166(02)00793-0Заранее благодарен