Enantioselective synthesis of fusarentin methyl ethers: Insecticidal metabolites of Fusarium larvarum
作者:Carole McNicholas、Thomas J. Simpson、Nicola J. Willett
DOI:10.1016/0040-4039(96)01823-0
日期:1996.10
Fusarentin 4,5-dimethyl ether (1) and its 4-desmethoxy analogue are synthesised via acylation of the benzylic anion of N,N-dimethyl-2,3,4,-trimethoxy-6-methylbenzamide (9) and N,N-dimethyl-2,4-dimethoxy-6-methylbenzamide (8) with N-methoxy-N-methyl-(S)-3-tert-butyldimethylsilyloxyhexanamide (13): subsequent reduction of ketone (15) to the anti-1,3-diol (16) and acid catalysed cyclisation gives (1)
Fusarentin 4,5-二甲基醚(1)及其4-去甲氧基类似物是通过N,N-二甲基-2,3,4,-三甲氧基-6-甲基苯甲酰胺(9)和N,N的苄基阴离子的酰化反应合成的-二甲基-2,4-二甲氧基-6-甲基苯甲酰胺(8)与N-甲氧基-N-甲基-(S)-3-叔丁基二甲基甲硅烷基氧己酰胺(13):随后将酮(15)还原为抗-1, 3-二醇(16)和酸催化的环化得到(1)。