作者:Miguel F. Braña、Mercedes Garrido、José L. Hernando、María L. LÓPez Rodríguez、M. José Morcillo                                    
                                    
                                        DOI:10.1002/jhet.5570240643
                                    
                                    
                                        日期:1987.11
                                    
                                    cyanate gives 5-(5-hydroxy-3-indolylmethyl)hydantoin 5 or Nb-carbamoyl-5-hydroxy-L-tryptophan 6 depending on the reaction conditions. Reaction of 4 with methyl iso-cyanate in acetone provides 5-hydroxy-Nb-methylcarbamoyl-L-tryptophan 7. Treatment of 4 with ethyl, propyl and isopropyl isocyanates in acetone gives rise to the formation of the corresponding 2-[(3-alkyl-4,4-dimethyl-2-oxo)-1,3-diazetidinyl
                                    取决于反应条件,具有
氰酸钾的
5-羟基-L-色氨酸4产生5-(5-羟基-3-
吲哚基甲基)乙内酰
脲5或N b-
氨基甲酰基-
5-羟基-L-色氨酸6。的反应4与甲基异
氰酸盐在
丙酮中提供5-羟基- ñ b甲基
氨基甲酰基- 
L-色氨酸7。在
丙酮中用乙基,丙基和异丙基
异氰酸酯处理4会形成相应的2-[((3-烷基-4,
4-二甲基-2-氧代)-1,3-二氮杂
环丁烷基] -3-(5 -羟基-3-
吲哚基)
丙酸8-10。