甲基磺酰胺的合成研究

本文采用硫酸二甲酯为主要原料经氯化、氨化合成甲基磺酰胺，产品收率可达６６．８％，纯度在９８％以上。     

Design,Synthesis and Anticancer Profile of New 4-(1H-benzo[d]imidazol-1-yl)pyrimidin-2-amine-Linked Sulfonamide Derivatives with V600EBRAF Inhibitory Effect

A new series of 4-(1H-benzo[d]imidazol-1-yl)pyrimidin-2-amine linked sulfonamide derivatives 12a–n was designed and synthesized according to the structure of well-established V600EBRAF inhibitors. The terminal sulfonamide moiety was linked to the pyrimidine ring via either ethylamine or propylamine bridge. The designed series was tested at fixed concentration (1 µM) against V600EBRAF, finding that 12e, 12i and 12l exhibited the strongest inhibitory activity among all target compounds and 12l had the lowest IC₅₀ of 0.49 µM. They were further screened on NCI 60 cancer cell lines to reveal that 12e showed the most significant growth inhibition against multiple cancer cell lines. Therefore, cell cycle analysis of 12e was conducted to investigate the effect on cell cycle progression. Finally, virtual docking studies was performed to gain insights for the plausible binding modes of vemurafenib, 12i, 12e and 12l.     

2-甲氧基乙氧基苯磺酰胺的合成

以2—氯苯胺为原料,经过重氮化、磺酰化和胺化反应得到2—氯苯磺酰胺,再和乙二醇单甲醚经取代反应得到2—甲氧基乙氧基苯磺酰胺,总收率达到41％。     

Sorbitol-modified poly(N-glycidyl styrene sulfonamide) for removal of boron

A sorbitol-containing resinous polymer has been prepared starting from crosslinked polystyrene–10% divinylbenzene (DVB) resin beads (720–840 μm) by the following series of reactions: (1) chlorosulfonation, (2) sulfonamidation with N-propylamine, (3) condensation of sulfonamide with epichlorohydrin, and (4) modification with sorbitol. The resulting sorbitol-modified polymer has been demonstrated to be an efficient and regenerable specific sorbent for removal of boron in parts per million (ppm) levels. Kinetics of boron sorption and regeneration of the polymer were investigated. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68: 2113–2119, 1998     

含氨基酸结构的磺酰胺衍生物合成与生物活性

采用分子杂交策略，设计合成15个氨基酸结构的磺酰胺衍生物进行抗菌活性评价。首先，苯磺酰氯与氨基酸反应制得苯磺酰氨基酸（中间体Ⅰ），然后，以芳香醛、亚磷酸酯、乙酸铵和三氟甲磺酸铝为原料，一锅法制得α-氨基膦酸酯（中间体Ⅱ），最后，中间体Ⅰ与Ⅱ缩合，制得目标物，经1H NMR 、13C NMR和MS确认结构。结果表明，该类化合物对大肠杆菌（E. coli）和耐氟喹诺酮大肠杆菌（FREC）活性最为显著。其中，化合物Ⅲb〔{(2-氟苯基) [2-(苯基磺酰氨基)苯丙酰氨基]甲基}膦酸二乙酯〕、Ⅲc〔{(2-氟苯基) [2-(苯基磺酰氨基)苯丙酰氨基]甲基}膦酸二乙酯〕、Ⅲh〔{(2-氟苯基) [2-(苯基磺酰基氨)异戊酰氨基]甲基}膦酸二乙酯〕和Ⅲm〔{(苯基) [2-(苯基磺酰基氨)乙酰氨基]甲基}膦酸二乙酯〕对E. coli的MIC（Minimum Inhibitory Concentration）均为16 μg/mL，化合物Ⅲn〔{(2-氟苯基) [2-(苯基磺酰氨基)乙酰氨基]甲基}膦酸二乙酯〕对E. coli的MIC为8 μg/mL，抗菌活性不低于对照药苯唑西林；化合物Ⅲb、Ⅲh、Ⅲm和Ⅲn对FREC的MIC分别为32、32、32和16 μg/mL，优于对照药苯唑西林和诺氟沙星。