A 5‘-(Trifluoromethyl)anthracycline Glycoside: Synthesis of Antitumor-Active 7-<i>O</i>-(2,6-Dideoxy-6,6,6-trifluoro-α-<scp>l</scp>-<i>lyxo</i>-hexopyranosyl)adriamycinone
作者:Yasushi Takagi、Ken Nakai、Tsutomu Tsuchiya、Tomio Takeuchi
DOI:10.1021/jm960177x
日期:1996.1.1
7-O-(2,6-Dideoxy-6,6,6-trifluoro-alpha-L-lyxo-hexopyranosyl)adriam ycinone (3), whose substituent at C-5' is a lipophilic trifluoromethyl group, has been prepared by coupling of 3,4-di-O-acetyl-2,6-dideoxy-6,6,6-trifluoro-alpha-L-lyxo-hexopyran osyl bromide (20) with 14-O-(tert-butyldimethylsilyl)adriamycinone under the Koenigs-Knorr conditions. The key step in this synthesis was the C-trifluoromethylation
已经通过以下方法制备了7-O-(2,6-二脱氧-6,6,6-三氟-α-L-lyxo-己吡喃糖基)阿德里亚姆(3),其在C-5'的取代基是亲脂性三氟甲基。 3,4-二-O-乙酰基-2,6-二脱氧-6,6,6-三氟-α-L-lyxo-己吡喃糖基溴化物(20)与14-O-(叔丁基二甲基甲硅烷基)去甲霉素的偶合Koenigs-Knorr条件。该合成过程中的关键步骤是10中衍生自D-lyxose的5-O-乙酰基-2,3-二-O-苄基-4-脱氧醛-L-赤型戊糖的C-三氟甲基化(10)步骤,在四丁基氟化铵存在下,用(三氟甲基)三甲基硅烷,得到1,1,1-三氟-L-阿拉伯糖基己糖醇(11)及其2-表异构体。与包括阿霉素的类似物相比,合成产物3在低剂量范围内显示出显着的体内抗肿瘤活性。