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C. L. Cao, M. C. Ye, X. L. Sun and Y. Tang, “Pyr- rolidine-Thiourea as a Bifunctional Organocatalyst: Highly Enantioselective Michael Addition of Cyclohexanone to Nitroolefins,” Organic Letters, Vol. 8, No. 14, 2006, pp. 2901-2904. doi:10.1021/ol060481c

has been cited by the following article:

• TITLE: Facile Synthesis of Novel Chiral Bicyclic Thioureas and Their Crystal Structures

  AUTHORS: Ping An Wang, Hui Fang Nie, Lin Jie Yan, Sheng Yong Zhang

  KEYWORDS: Chiral Bicyclic Thiourea; cis-2, 5-Disubstituted Pyrrolidine; X-Ray Analysis

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.2 No.1, March 15, 2012

  ABSTRACT: The novel well-defined chiral bicyclic thioureas based on enantiopure unsymmetric cis-2,5-disustituted pyrrolidine skeleton were firstly synthesized and fully characterized by their 1H NMR, 13C NMR and HRMS. Their absolute configurations were also determined by single-crystal X-ray analysis.