Synthesis and transformations of 2-deoxy-2-iodo-pyranosyl isothiocyanates from glycals
作者:Francisco Santoyo-González、Francisco García-Calvo-Flores、Joaquín Isac-García、Fernando Hernández-Mateo、Pilar García-Mendoza、Rafael Robles-Díaz
DOI:10.1016/s0040-4020(01)87000-9
日期:1994.2
A convenient one-step synthesis of 2-deoxy-2-iodoglycosyl isothiocyanates from monosaccharidic and disaccharidic glycals is reported. Treatment of iodoisothiocyanates 7, 11, 13–15 with ammonia gives the corresponding 2-amino-thiazolines 16, 17, 23–25, respectively. Under the same conditions, iodoisothiocyanate 8 affords the iodothiourea 18. 2-Amino-2-thiazolines 23–25 can be readily transformed into
据报道,从单糖和二糖基糖中方便地一步合成2-脱氧-2-碘糖基异硫氰酸酯。iodoisothiocyanates的治疗7,11,13-15与氨的相应的2-氨基-噻唑啉给出16,17,23-25分别。在相同条件下,碘代异硫氰酸酯8提供了碘代硫脲18。2-氨基-2-噻唑啉23-25可以很容易地转化为噻唑烷-2-酮26-28。化合物的还原7,8,13-15由三丁基氢化锡的产率相应的N-(2'- deoxyglycosyl)硫脲21,22,29-31。