Total synthesis of the marine alkaloid (-)-lepadin B

Total synthesis of the marine alkaloid (-)-lepadin B
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DOI:
10.1021/ol000153r
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发表时间:
2000-09-21
期刊:
影响因子:
5.2
通讯作者:
Kibayashi, C
Kibayashi, C
中科院分区:
化学1区
文献类型:
--
作者:
Ozawa, T;Aoyagi, S;Kibayashi, C

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以(2S,4S)-2,4-O-亚苄基-2,4-二羟基丁醛为起始原料,通过水相分子内酰基亚硝基Diels-Alder反应得到反式-1,2-恶嗪内酰胺,并通过Suzuki交叉偶联反应得到(E,E)-辛二烯基单元。
[GRAPHICS]An enantioselective total synthesis of (-)-lepadin a has been developed starting from (2S,4S)-2,4-O-benzylidene-2,4-dihydroxybutanal, The key steps in the synthesis include the use of an aqueous intramolecular acylnitroso Diels-Alder reaction to afford the trans-1,2-oxazinolactam and Suzuki cross coupling reaction to elaborate the (E,E)-octadienyl unit.