Adriamycin analogues. Synthesis of the α and β anomers of 7-<i>O</i>-(3-amino-3,5-dideoxy-<scp>D</scp>-ribofuranosyl)adriamycinone and some related compounds
作者:Narendra Kumar、Mervyn Israel
DOI:10.1139/v84-442
日期:1984.11.1
2-O-Acetyl-3,5-dideoxy-3-trifluoracetamido-D-ribofuranosyl bromide, prepared by an improved 10-step synthesis from 1,2-isopropylidene-D-xylofuranose, was coupled under Koenigs–Knorr glycosidation conditions with a side-chain protected aglycone derivative of the antitumor antibiotic adriamycin. Complete removal of the blocking groups from the anomeric coupling products afforded glycoside ring-contracted
2-O-Acetyl-3,5-dideoxy-3-trifluoracetamido-D-ribofuranosyl bromide,由 1,2-isopropylidene-D-xylofuranose 改进的 10 步合成制备,在 Koenigs-Knorr 糖苷化条件下与抗肿瘤抗生素阿霉素的侧链保护糖苷配基衍生物。从异头偶联产物中完全去除封闭基团,得到阿霉素的糖苷环收缩类似物。选择性去除封闭基团产生了 N-三氟乙酰基阿霉素-14-戊酸 (AD 32) 的类似物,这是一种具有临床活性和毒性降低的阿霉素的非 DNA 结合类似物。耦合产物的异头分配源自与 Karplus 方程考虑一致的 nmr 光谱数据。对许多目标化合物进行了体外生长抑制和 DNA 结合试验。