3-Oxa-15-cyclohexyl prostaglandin DP receptor agonists as topical antiglaucoma agents
作者:M Hellberg
DOI:10.1016/s0968-0896(02)00016-0
日期:2002.6
ocular hypertensive monkey. Ester, 1-alcohol, and selected amide prodrugs of the carboxylic acid enhance in vivo potency, presumably by increasing bioavailability. The clinical candidate AL-6598, the isopropyl ester prodrug of AL-6556, produces a maximum 53% drop in monkey IOP with a 1 microg dose (0.003% w/w) using a twice-daily dosing regime. Synthetically, AL-6598 was accessed from known intermediate
合成了一系列含有3-oxa-15-环己基基序的前列腺素DP激动剂,并在一些体外和体内生物学分析中进行了评估。参考化合物ZK 118.182(9beta-氯-15-环己基-3-氧杂-ω-戊基PGF(2alpha))是前列腺素DP受体上的一种强效全效激动剂。13,14烯烃的饱和得到AL-6556,其效力较低,但仍然是完全的激动剂。用氢原子代替9氯或碳15立体化学的反转也降低了亲和力。在体内研究中,ZK 118.182在眼高压猴子中局部应用可降低眼内压(IOP)。酯,1-醇和羧酸的选定酰胺前药可能通过提高生物利用度来增强体内效能。临床候选者AL-6598,AL-6556的异丙基酯前药在每日两次给药方案下,以1微克剂量(0.003%w / w)在猴子眼压中产生最大53%的下降。合成地,使用新颖的密钥序列从已知的中间体1中获得AL-6598以将顺式烯丙基醚安装在α链上,包括在仲甲硅烷基醚的存在下对伯