Synthesis of Diels–Alder adducts of the quinolizidine alkaloids N-methylcytisine, (−)-leontidine, and (−)-thermopsine with N-phenylmaleimide
作者:Inna P. Tsypysheva、Alexander N. Lobov、Alena V. Kovalskaya、Valentina I. Vinogradova、Kyrill Yu. Suponitsky、Sergey L. Khursan、Marat S. Yunusov
DOI:10.1016/j.tetasy.2013.09.002
日期:2013.10
The Diels-Alder adducts of the quinolizidine alkaloids N-methylcytisine, (-)-leontidine, and (-)-thermopsine with N-phenylmaleimide have been synthesized. The structures and absolute configurations of the new asymmetric centers of the products were determined by NMR spectroscopy experiments, QC-calculations, and X-ray data. (C) 2013 Elsevier Ltd. All rights reserved.
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