Using a combination of asymmetric vinylogous Mukaiyama aldol and Stifle cross-coupling reactions, an advanced polyene fragment of the chivosazoles was prepared in a highly stereocontrolled manner. This key C1-C13 pentaene subunit, featuring the conjugated (2E,4Z,6E,8Z)-tetraenoate motif and anti-configured C10 and C11 stereocenters of the chivosazoles, terminates in a (Z)-vinyl bromide for the planned cross-coupling to a northern hemisphere fragment.
机构:
Indian Inst Chem Technol, Organ Div 1, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Organ Div 1, Hyderabad 500007, Andhra Pradesh, India
Sabitha, Gowravaram
Rao, A. Senkara
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Indian Inst Chem Technol, Organ Div 1, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Organ Div 1, Hyderabad 500007, Andhra Pradesh, India
Rao, A. Senkara
Yadav, Jhillu S.
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Indian Inst Chem Technol, Organ Div 1, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Organ Div 1, Hyderabad 500007, Andhra Pradesh, India
机构:
Waseda Univ, Fac Adv Sci & Engn, Dept Appl Chem, 3-4-1 Ohkubo,Shinjuku Ku, Tokyo 1698555, JapanWaseda Univ, Fac Adv Sci & Engn, Dept Appl Chem, 3-4-1 Ohkubo,Shinjuku Ku, Tokyo 1698555, Japan