Preparation and Root Growth-Inhibitory Activity of N-Substituted 2-(2-Chloroacetamido)-3-(furan-2-yl)propanamides
作者:Tokujiro Kitagawa、Makoto Asada
DOI:10.1248/cpb.53.1183
日期:——
series of N-substituted 2-(2-chloroacetamido)-3-(furan-2-yl)propanamides (16--18) was prepared through the reaction of chloroacetyl chloride with N-substituted 2-amino-3-(furan-2-yl)propanamides (15), which were obtained via condensation of 2-(tert-butoxycarbonylamido)-3-(furan-2-yl)propanoic acid (Boc-furylalanine) (8) with amines (9, 11, 13), followed by hydrolysis of the resultant N-substituted Boc-furylalanine
通过氯乙酰氯与N-取代的2-氨基-3-(呋喃)的反应制备了一系列N-取代的2-(2-氯乙酰胺基)-3-(呋喃-2-基)丙酰胺(16--18) -2-基)丙酰胺(15)是通过将2-(叔丁氧基羰基酰胺基)-3-(呋喃-2-基)丙酸(Boc-呋喃丙氨酸)(8)与胺(9,11, 13),然后在HCl /二恶烷存在下水解所得的N-取代的Boc-呋喃丙氨酸酰胺(10,12,14)。通过使用油菜种子的发芽测定法检查了制备的16、17和18作为根生长抑制剂的生物活性。在5.0 x10(-5)M的浓度下,活性最高的化合物2-(2-氯乙酰胺基)-N-(2,6-二乙基苯基)-3-(呋喃-2-基)丙酰胺(16 n),对油菜幼苗的根系生长抑制活性为76%。