Development of Guanidine-Bisurea Bifunctional Organocatalyst Bearing Chirality at the Inner and Outer Sides of the Urea Groups, and Application to Enantioselective α-Hydroxylation of Pyranoindolizine Intermediate for Camptothecin Synthesis

Author： Odagi Minami   Watanabe Tatsuya   Nagasawa Kazuo  

Publisher： MDPI

E-ISSN： 2073-8994|7|1|43-52

ISSN： 2073-8994

Source： Symmetry, Vol.7, Iss.1, 2015-01, pp. : 43-52

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