A simple and efficient synthesis of puromycin, 2,2′-anhydro-pyrimidine nucleosides, cytidines and 2′,3′-anhydroadenosine from 3′,5′-<i>O</i>-sulfinyl<i>Xylo</i>-nucleosides
作者:Ken-ichi Takatsuki、Sumito Ohgushi、Shigeo Kohmoto、Keiki Kishikawa、Makoto Yamamoto
DOI:10.1080/15257770600725929
日期:2006.8
antibiotics, puromycin and 3 ′-amino-3 ′-deoxy-N 6,N 6-dimethyladenosine 11 was achieved by utilizing the cyclic sulfite 6a of the xylo-3 ′,5 ′-dihydroxy group as a new protective group. The key synthetic step is the deprotection of the sulfite moiety through the intramolecular cyclization of 2-α-carbamate 7. In a similar manner, 2,2 ′-anhydro-pyrimidine nucleosides 15, ribo-cytidines 17 and 2 ′,3 ′-anhydroadenosine
利用xylo-3′,5′-二羟基的环状亚硫酸盐6a作为新的保护基,合成了嘌呤霉素和3′-氨基-3′-脱氧-N 6,N 6-二甲基腺苷11。关键的合成步骤是通过2-α-氨基甲酸酯7的分子内环化作用对亚硫酸盐部分进行脱保护。类似地,2,2'-脱水嘧啶核苷15,核糖胞苷17和2',3'-分别由相应的亚硫酸盐4、5和6b高产率地制备了脱水腺苷14。