一个人的垃圾就是另一个人的宝:jadomycin A 和jadomycin B 的碳糖类似物的首次合成分别在 6 和 20 个最长的线性步骤中完成。苷元的关键环系统是通过 6π 电子电环闭合和随后的半胺环闭合制备的。jadomycin B 中糖苷键的酸敏感性(参见结构;X=O)阻止了它的合成,但导致了碳糖类似物(X=CH 2)。
Use of the Perdeuteroallyl Protecting Group Facile and straightforward transformations of propynoic acid into perdeuterated allyl bromide are described. The advantage of the pentadeuteroallyl protection for the 1H-N.M.R. structure elucidation of complex carbohydrate derivatives is demonstrated in the 2,6-dideoxy-L-ribo-series.
KOLAR, CENEK;DEHMEL, KONRAD;MOLDENHAUER, HANS, CARBOHYDR. RES., 208,(1990) C. 67-81
作者:KOLAR, CENEK、DEHMEL, KONRAD、MOLDENHAUER, HANS
DOI:——
日期:——
Total Synthesis of Jadomycin A and a Carbasugar Analogue of Jadomycin B
作者:Mingde Shan、Ehesan U. Sharif、George A. O'Doherty
DOI:10.1002/anie.201005329
日期:2010.12.3
syntheses of jadomycin A and the carbasugaranalogue of jadomycinB have been achieved in 6 and 20 longest linear steps, respectively. The key ring system of the aglycone was prepared by a 6π‐electron electrocyclic ring closure and subsequent hemiaminal ring closure. Acid sensitivity of the glycosidic bond in jadomycinB (see structure; X=O) precluded its synthesis but led to the carbasugaranalogue (X=CH2)
一个人的垃圾就是另一个人的宝:jadomycin A 和jadomycin B 的碳糖类似物的首次合成分别在 6 和 20 个最长的线性步骤中完成。苷元的关键环系统是通过 6π 电子电环闭合和随后的半胺环闭合制备的。jadomycin B 中糖苷键的酸敏感性(参见结构;X=O)阻止了它的合成,但导致了碳糖类似物(X=CH 2)。