Synthesis and 5-Lipoxygenase Inhibitory Activities of Some Novel 2-Substituted 5-Benzofuran Hydroxamic Acids
作者:Kwasi A. Ohemeng、Mary A. Appollina、Van N. Nguyen、Charles F. Schwender、Monica Singer、Michele Steber、Justin Ansell、Dennis Argentieri、William Hageman
DOI:10.1021/jm00047a023
日期:1994.10
A series of 2-substituted benzofuran hydroxyamic acids were synthesized as rigid analogs of simple (benzyloxy)phenyl hydroxamates, evaluated for their in vitro and in vivo 5-lipoxygenase activity and found to be potent inhibitors of the enzyme. Substituents which enhanced lipophilicity near the 2-position of the benzofuran nucleus increased inhibitor potency but reduced oral activity. Incorporation
合成了一系列2-取代的苯并呋喃羟基酰胺酸,作为简单的(苄氧基)苯基异羟肟酸酯的刚性类似物,对其体外和体内的5-脂氧合酶活性进行了评估,发现它们是该酶的有效抑制剂。在苯并呋喃核的2-位附近增强亲脂性的取代基增加了抑制剂的效力,但降低了口服活性。在酰基上掺入小的极性取代基(如甲氧基亚甲基,羟甲基和氨基(脲))可产生更一致的口服活性。该系列中最有效的体外抑制剂是N-羟基-N- [1-(2-苯基-5-苯并呋喃基)-乙基]呋喃甲酰胺(12)和甲基5- [N-羟基-N- [1-( 2-(3,4,5-三甲氧基苯基)-5-苯并呋喃基]乙基] -5-氧戊酸(17),IC50均为40 nM,