A chemoenzymatic and enantioselective total synthesis of the resorcylic acid lactone L-783,290, the trans-isomer of L-783,277
摘要:
The structure, 5, assigned to the resorcylic acid lactone L-783,290 has been prepared for the first time and in a modular fashion using a Heck reaction to link the readily available fragments 8 and 14. Chemoenzymatic methods were used to prepare the latter fragment, in enantiopure form, from chlorobenzene. (C) 2009 Elsevier Ltd. All rights reserved.
A chemoenzymatic and enantioselective total synthesis of the resorcylic acid lactone L-783,290, the trans-isomer of L-783,277
摘要:
The structure, 5, assigned to the resorcylic acid lactone L-783,290 has been prepared for the first time and in a modular fashion using a Heck reaction to link the readily available fragments 8 and 14. Chemoenzymatic methods were used to prepare the latter fragment, in enantiopure form, from chlorobenzene. (C) 2009 Elsevier Ltd. All rights reserved.
An Enantioselective Synthesis of the Resorcylic Acid Lactone L-783,277 via Addition of an Acetylide Anion to a Tethered Weinreb Amide
作者:Martin G. Banwell、Andrew Lin、Anthony C. Willis
DOI:10.3987/com-10-s(e)67
日期:——
Treatment of the terminal acetylene 12, readily obtained from the previously reported acid 10, with LiHMDS resulted in a novel macrocyclization reaction to give the cycloalkyne 13. Subjection of compound 13 to hydrogenation under Lindlar-type conditions afforded the Z-configured enone 14 that could be converted into the resorcylic acid lactone 4 upon treatment with BCl3 in CH2Cl2 at -78 degrees C.
A chemoenzymatic and enantioselective total synthesis of the resorcylic acid lactone L-783,290, the trans-isomer of L-783,277
作者:Andrew Lin、Anthony C. Willis、Martin G. Banwell
DOI:10.1016/j.tetlet.2009.12.067
日期:2010.2
The structure, 5, assigned to the resorcylic acid lactone L-783,290 has been prepared for the first time and in a modular fashion using a Heck reaction to link the readily available fragments 8 and 14. Chemoenzymatic methods were used to prepare the latter fragment, in enantiopure form, from chlorobenzene. (C) 2009 Elsevier Ltd. All rights reserved.