Glucopyranosylidene-spiro-iminothiazolidinone, a new bicyclic ring system: Synthesis, derivatization, and evaluation for inhibition of glycogen phosphorylase by enzyme kinetic and crystallographic methods
作者:Katalin Czifrák、András Páhi、Szabina Deák、Attila Kiss-Szikszai、Katalin E. Kövér、Tibor Docsa、Pál Gergely、Kyra-Melinda Alexacou、Maria Papakonstantinou、Demetres D. Leonidas、Spyros E. Zographos、Evangelia D. Chrysina、László Somsák
DOI:10.1016/j.bmc.2014.05.076
日期:2014.8
The reaction of thiourea with O-perbenzoylated C-(1-bromo-1-deoxy-β-d-glucopyranosyl)formamide gave the new anomeric spirocycle 1R-1,5-anhydro-d-glucitol-spiro-[1,5]-2-imino-1,3-thiazolidin-4-one. Acylation and sulfonylation with the corresponding acyl chlorides (RCOCl or RSO2Cl where R = tBu, Ph, 4-Me-C6H4, 1- and 2-naphthyl) produced the corresponding 2-acylimino- and 2-sulfonylimino-thiazolidinones
的硫脲与反应ö -perbenzoylated Ç - (1-溴-1-脱氧β- d吡喃葡萄糖基)甲酰胺,得到新的异头螺环1 - [R -1,5-脱水- d -glucitol螺- [1,5 ] -2-亚氨基-1,3-噻唑烷酮-4-一。酰化和磺酰化与相应的酰基氯(RCOCl或RSO 2氯,其中R = 吨卜,pH值,4-ME-C 6 H ^ 4,1-和2-萘基)中产生的相应的2- acylimino-和2- sulfonylimino-噻唑烷酮。通过MeI,烯丙基溴和BnBr烷基化生成相应的N-烷基亚氨基和N,N的混合物'-二烷基-亚氨基-噻唑烷酮,而与1,2-二溴乙烷和1,3-二溴丙烷的反应提供了螺环的5,6-二氢-咪唑并[2,1 - b ]噻唑烷-3--3-和6,7-二氢- 5 H-噻唑烷[3,2 - a ]嘧啶-3-一。Zemplén协议删除O-苯甲酰基保护基团导致测试化合物,其中大多数被证明是兔肌肉糖原磷酸化酶b(RMGP