Studies on Uricosuric Diuretics. II. Substituted 7,8-Dihydrofuro(2,3-g)-1,2-benzisoxazole-7-carboxylic acids and 7,8-Dihydrofuro(2,3-g)benzoxazole-7-carboxylic acids.
作者:Haruhiko SATO、Takashi DAN、Etsuro ONUMA、Haruko TANAKA、Bunya AOKI、Hiroshi KOGA
DOI:10.1248/cpb.39.1760
日期:——
A series of substituted 7, 8-dihydrofuro[2, 3-g]-1, 2-benzisoxazole-7-carboxylic acids 9 and 7, 8-dihydrofuro[2, 3-g]benzoxazole-7-carboxylic acids 12 were synthesized and evaluated for uricosuric and diuretic activities in rats. Many of the benzisoxazole derivatives 9 showed uricosuric and only weak diuretic activities, whereas the benzoxazoles 12 exhibited potent diuretic activities with little affecting urate excretion. Among these compounds, 5-chloro-7, 8-dihydro-3-phenylfuro[2, 3-g]-1, 2-benzisoxazole 7-carboxylic acid (9b, AA-193) was found to be a potent uricosuric agent without diuretic activity and was selected for further development.
一系列取代的7,8-二氢呋喃并[2,3-g]-1,2-苯并异恶唑-7-羧酸9和7,8-二氢呋喃并[2,3-g]苯并恶唑-7-羧酸12被合成并在大鼠中评估了其促尿酸排泄和利尿活性。许多苯并异恶唑衍生物9显示出促尿酸排泄活性,而仅有微弱的利尿活性,而苯并恶唑12则表现出强有力的利尿活性,对尿酸排泄影响甚微。在这些化合物中,5-氯-7,8-二氢-3-苯基呋喃并[2,3-g]-1,2-苯并异恶唑-7-羧酸(9b,AA-193)被发现是一种强效的促尿酸排泄剂,没有利尿活性,并被选中进行进一步开发。