Organometallic Enantiomeric Scaffolding: Organometallic Chirons. Total Synthesis of (−)-Bao Gong Teng A by a Molybdenum-Mediated [5+2] Cycloaddition
摘要:
Bao Gong Teng A, an optically active tropane alkaloid with hypotensive and miotic activity isolated from the Chinese herb Erycibe obtusifolia Benth, was synthesized by an "organometallic Chiron" strategy in which single enantiomers of TpMo(CO)(2)(eta(3)-pyriclinyl) complexes are produced in quantity and then elaborated easily and efficiently to generate, after demetalation, highly enantiopure advanced synthetic intermediates possessing the tropane core.
Organometallic Enantiomeric Scaffolding: Organometallic Chirons. Total Synthesis of (−)-Bao Gong Teng A by a Molybdenum-Mediated [5+2] Cycloaddition
摘要:
Bao Gong Teng A, an optically active tropane alkaloid with hypotensive and miotic activity isolated from the Chinese herb Erycibe obtusifolia Benth, was synthesized by an "organometallic Chiron" strategy in which single enantiomers of TpMo(CO)(2)(eta(3)-pyriclinyl) complexes are produced in quantity and then elaborated easily and efficiently to generate, after demetalation, highly enantiopure advanced synthetic intermediates possessing the tropane core.
Organometallic Enantiomeric Scaffolding: Organometallic Chirons. Total Synthesis of (−)-Bao Gong Teng A by a Molybdenum-Mediated [5+2] Cycloaddition
作者:Yongqiang Zhang、Lanny S. Liebeskind
DOI:10.1021/ja055623x
日期:2006.1.1
Bao Gong Teng A, an optically active tropane alkaloid with hypotensive and miotic activity isolated from the Chinese herb Erycibe obtusifolia Benth, was synthesized by an "organometallic Chiron" strategy in which single enantiomers of TpMo(CO)(2)(eta(3)-pyriclinyl) complexes are produced in quantity and then elaborated easily and efficiently to generate, after demetalation, highly enantiopure advanced synthetic intermediates possessing the tropane core.