A Simple Access to Carbocyclic Analogs of 2-Deoxy-<scp>d</scp>-Ribose Having the 3-Hydroxymethylene Moiety Replaced by Heteroatoms
作者:Karsten Schürrle、Wolfgang Piepersberg
DOI:10.1080/07328309608005664
日期:1996.5
(hydrogen peroxide) to give the analogous cyclic phospholane oxide (phosphinic acid) which was then transformed with benzyl bromide and alkali carbonate into the 1-benzyl phospholane oxide (phosphinic acid benzyl ester). All heterocyclic compounds sythesized, formally resemble carba-2,3-dideoxy-d-giycero-pentofuranose, the carbocyclic analog of 2-deoxy-α-d-ribofuranose.
(2 S,4 S)-1- O-苄基-2,5-二-O-甲磺酰基-4- O-甲氧基甲基戊烷-1,2,4,5-四醇,一种通用的前体,用于随后用二价亲核剂环化,从容易获得的(3 S,5 S)-3-羟基-5-羟基甲基二氢呋喃-2(3 H)-一处以五个步骤获得甲氧基硅烷。在DMSO中使用磷化钠或在丙酮-水中使用硒化二钠,(2 R,4 S)-2-苄氧基甲基-4- O-甲氧基甲基膦烷和(2 R,4 S)-2-苄氧基甲基-4- O制备了-甲氧基甲基硒醇。用氧气(过氧化氢)氧化膦环,得到类似的环状膦环氧化物(次膦酸),然后用苄基溴和碱金属碳酸盐将其转化为1-苄基膦环氧化物(次膦酸苄基酯)。所有杂环化合物sythesized,正式类似卡巴-2,3-二脱氧d - giycero -pentofuranose,2-脱氧- α-的碳环类似物d -ribofuranose。