Parallel Synthesis of 1,2,3,4-Tetrahydro-β-carbolines Using Microwave Irradiation
作者:Chung-Ming Sun、Cheng-Yi Wu
DOI:10.1055/s-2002-34220
日期:——
Novel soluble polymer supported synthesis of 1,2,3,4-tetrahydro-β-carboline derivatives in the microwave oven is reported. Commercially available Fmoc-protected tryptophan was directly anchored to MeO-PEG-OH via an ester linkage in the presence of DCC and DMAP. One pot cyclocondensation of polymer-bound tryptophan with a variety of aldehydes and ketones has been carried out under microwave irradiation to provide immobilized 1,2,3,4-tetra-hydro-β-carboline derivatives. The desired products were then liberated from the soluble matrix in good yield and good purity.
报告了在微波炉中合成 1,2,3,4-四氢-δ-咔啉衍生物的新型可溶性聚合物。在 DCC 和 DMAP 的存在下,市售的 Fmoc 保护色氨酸通过酯键直接锚定到 MeO-PEG-OH 上。在微波辐照下,将聚合物结合的色氨酸与各种醛和酮进行一锅环缩合,从而得到固定的 1,2,3,4-四氢δ-咔啉衍生物。随后,所需的产物以良好的收率和纯度从可溶性基质中释放出来。