The synthesis of β-heteroarylamino-α,β-dehydro-α-amino acid derivatives<i>via</i>thiazolones
作者:Janez Smodiŝ、Branko Stanovnik、Miha Tiŝler
DOI:10.1002/jhet.5570310133
日期:1994.1
2-Alkoxy-4-heteroarylaminomethylene-5(4H)-thiazolones 4 were converted with various nucleophiles into β-heteroarylamino-α,β-dehydro-α-amino acid derivatives 11, 14, 15, 16, 17, 18, and 19. Reduction of 4 with sodium borohydride in ethanol saturated with gaseous ammonia afforded the corresponding β-heteroaryl-amino substituted alanyl amides 20. Thiazoledione derivative 7a was transformed with sodium
2-烷氧基-4- heteroarylaminomethylene-5(4 ħ)-thiazolones 4转化与各种亲核成β-杂芳-α,β脱氢-α -氨基酸衍生物11,14,15,16,17,18,和19。在用氨气饱和的乙醇中用硼氢化钠还原4,得到相应的β-杂芳基-氨基取代的丙氨酰胺20。用甲醇钠在甲醇中的噻唑二酮衍生物7a转化成1-(4,6-二甲基嘧啶基-2)-4-巯基羰基咪唑-2(3 H)-one(8a)。