An Evaluation of the Antirhinoviral Activity of Acylfuran Replacements for 3-Methylisoxazoles. Are 2-Acetylfurans Bioisosteres for 3-Methylisoxazoles?
作者:Thomas R. Bailey、Guy D. Diana、John P. Mallamo、Niranjan Vescio、Tandy L. Draper、Philip M. Carabateas、Melody A. Long、Vincent L. Giranda、Frank J. Dutko、Daniel C. Pevear
DOI:10.1021/jm00050a014
日期:1994.11
probe of the 3-methylisoxazole portion of our broad-spectrum antipicornaviral series, a panel of 2-acetylfuran analogues was prepared as replacements for the 3-methylisoxazole ring. Comparison of the two series showed remarkable similarity in potency, spectrum of activity, logP, and electrostatic parameters. X-ray studies of 21b bound to human rhinovirus-14 showed that the 2-acetyl group adopted a syn conformation
作为我们广谱抗picornaviral系列中3-甲基异恶唑部分的探针,制备了一组2-乙酰基呋喃类似物来替代3-甲基异恶唑环。两个系列的比较显示出在功效,活性谱,logP和静电参数方面的显着相似性。对与人鼻病毒14结合的21b的X射线研究表明,2-乙酰基采用了syn构象,而羰基氧则以与异恶唑的氮几乎相同的方式充当了ASN219的氢键受体。2-甲基呋喃和2-甲酰基呋喃类似物的抗病毒活性降低证实了顺式构象和氢键能力的重要性。从该研究的结果,很明显,syn-2-乙酰基呋喃环起3-甲基异恶唑的生物等排体的作用。