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A convenient synthesis of 5-bromotryptophan and protected intermediates for peptide synthesis is reported. Only three steps are required to convert ethyl pyruvate into 5-bromo-tryptophan ethyl ester. 相似文献
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Noojaree Prasitpan Jayeshkumar N. Patel Philomen Z. De Croos Brenda L. Stockwell Parthasarathy Manavalan Leela Kar Michael E. Johnson Bruce L. Currie 《Journal of heterocyclic chemistry》1992,29(2):335-341
A series of N-1 or C-2 phenylalkyl substituted tryptophans and C-1 phenylalkyl substituted 3,4-dihydro-β-carbolines were prepared from the apropriate aniline, 1b or 1e , or tryptophan, 8 or 11 , by ring closure methods. None of the compounds prepared were more potent than 5-bromotryptophan (11) as inhibitors of sickle cell hemoglobin gelation. 相似文献
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