The N-acyliminium Pictet-Spengler condensation as a multicomponent combinatorial reaction on solid phase and its application to the synthesis of demethoxyfumitremorgin C analogues

被引:133
作者
Wang, HS [1 ]
Ganesan, A [1 ]
机构
[1] Natl Univ Singapore, Inst Mol & Cell Biol, Singapore 117609, Singapore
关键词
D O I
10.1021/ol991030d
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] L-Tryptophan immobilized on polystyrene-Wang resin was sequentially reacted with an aldehyde and Fmoc-amino acid chloride, This generates a transient N-acyliminium species which undergoes Pictet-Spengler condensation to give a mixture of cis and trans tetrahydro-beta-carbolines. Removal of the Fmoc protecting group, with concomitant diketopiperazine formation, results in cyclative cleavage of the desired products from the resin.
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页码:1647 / 1649
页数:3
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