西伯尔链接剂是一种效果不错的多肽合成链接试剂,可用于多肽、蛋白质类药物的合成过程。
制备在2L三口烧瓶中加入邻氟苯甲酸140.1g和1000ml二氯甲烷,再加入138.2g间苯二甲醚。降温至5-10℃后,缓慢向其中加入无水三氯化铝133.3g,体系逐渐放热,控制温度在10℃以下,加完三氯化铝后,黄褐色清液会析出黄褐色固体。撤去冰浴,在室温下反应6小时,并用TLC监控确保邻氟苯甲酸基本耗尽。
反应结束时冷却至5℃以下,将体系缓慢加入到500g冰水中淬灭反应。期间会有大量放热和气体逸出。淬灭完成后,向其中加入6N的盐酸500ml搅拌10分钟,进行分液操作。有机相用饱和碳酸氢钠500ml洗涤一遍后,再用饱和氯化钠溶液500ml洗涤一遍,然后用无水硫酸镁干燥。活性炭脱色抽滤后得到淡黄色液体,并将其旋至有大量白色固体析出。
向其中加入2L石油醚冰浴打浆1小时,抽滤后得到白色固体,真空干燥得210g中间体(单步摩尔收率80.7%,熔点约80℃)。
在另一2L三口烧瓶中加入上述制备的210g中间体和1200g氢溴酸水溶液,在氮气保护下,升温至95℃反应约8小时。期间固体会逐渐溶解成黄色清液,并随时间颜色加深。
TLC监控确认无中间体后,将体系浓缩析出大量米黄色固体粗品。用1500ml乙醇加热回流溶清,并进行活性炭脱色抽滤。降温至室温后加入3000ml水打浆,再次抽滤得到类白色或白色固体,真空干燥得145.5g产品西伯尔链接剂(单步摩尔收率85.1%,HPLC:98.6%,熔点251-253℃)。
核磁共振表征对反应产物进行核磁共振分析,数据如下:
HNMR(400MHz, DMSO):δ6.89(d, 1H),δ6.92(dd, 1H),δ7.46(td, 1H),δ7.63(d, 1H),δ7.77(td, 1H),δ8.02(d, 1H),δ8.12(dd, 1H),δ11(br, OH)
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-甲氧基氧杂蒽-9-酮 | 3-methoxyxanthone | 3722-52-9 | C14H10O3 | 226.232 |
—— | 1-hydroxy-3-methoxy-xanthen-9-one | 18799-43-4 | C14H10O4 | 242.231 |
—— | 4-cyano-3-hydroxyxanthen-9-one | 34133-63-6 | C14H7NO3 | 237.214 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-甲氧基氧杂蒽-9-酮 | 3-methoxyxanthone | 3722-52-9 | C14H10O3 | 226.232 |
—— | 3-ethoxy-xanthen-9-one | 100914-96-3 | C15H12O3 | 240.258 |
—— | 3-(2-hydroxyethoxy)-9H-xanthen-9-one | 646063-94-7 | C15H12O4 | 256.258 |
—— | 3-isopropoxyxanthen-9-one | 58741-65-4 | C16H14O3 | 254.285 |
—— | 3-Allyloxy-9H-xanthen-9-one | 732-09-2 | C16H12O3 | 252.269 |
—— | 3-(propargyloxy)xanthen-9-one | 328564-15-4 | C16H10O3 | 250.254 |
—— | 3-Trideuteromethoxyxanthon | 41977-79-1 | C14H10O3 | 229.208 |
—— | 3-(3-chloropropoxy)xanthen-9-one | 164934-24-1 | C16H13ClO3 | 288.73 |
—— | 3-(4-bromobutoxy)-9H-xanthene-9-one | 473000-07-6 | C17H15BrO3 | 347.208 |
—— | 3-hydroxyxanthone acetate | 87504-09-4 | C15H10O4 | 254.242 |
—— | <(9-oxoxanthen-3-yl)oxy>acetic acid | 25363-95-5 | C15H10O5 | 270.241 |
—— | 3-(4-chlorobutoxy)xanthen-9-one | 164934-25-2 | C17H15ClO3 | 302.757 |
—— | 3-(5-chloropentyloxy)xanthen-9-one | 213890-99-4 | C18H17ClO3 | 316.784 |
—— | 3-(1,2-Dihydroxypropyl)oxy-9H-xanthen-9-one | 102275-57-0 | C16H14O5 | 286.284 |
—— | 3-[(6-bromohexyl)oxy]-9H-xanthen-9-one | 473000-09-8 | C19H19BrO3 | 375.262 |
—— | 3-(6-chlorohexyloxy)xanthen-9-one | 380363-89-3 | C19H19ClO3 | 330.811 |
—— | 3-(7-bromoheptyloxy)xanthen-9-one | 380363-90-6 | C20H21BrO3 | 389.289 |
—— | 3-(10-bromodecyloxy)xanthen-9-one | 380363-93-9 | C23H27BrO3 | 431.37 |
—— | 3-(8-bromooctyloxy)xanthen-9-one | 380363-91-7 | C21H23BrO3 | 403.316 |
—— | 3-(8-bromononyloxy)xanthen-9-one | 380363-92-8 | C22H25BrO3 | 417.343 |
—— | 3-(2,3-epoxypropoxy)xanthone | 37933-97-4 | C16H12O4 | 268.269 |
—— | 3-[3-(diethylamino)-propoxy]xanthone | 1293988-20-1 | C20H23NO3 | 325.408 |
—— | 3-[3-(pyrrolidin-1-yl)-propoxy]xanthone | 1293988-17-6 | C20H21NO3 | 323.392 |
—— | 3-[3-(piperidin-1-yl)-propoxy]xanthone | 1293988-15-4 | C21H23NO3 | 337.419 |
—— | 3-[3-(piperazino)-propoxy]xanthone | 1293988-19-8 | C20H22N2O3 | 338.406 |
—— | 3-[3-(4-methylpiperazino)-propoxy]xanthone | 1293988-18-7 | C21H24N2O3 | 352.433 |
3-[2-羟基-3-(丙-2-基氨基)丙氧基]氧杂蒽-9-酮 | Xanthonolol | 37933-99-6 | C19H21NO4 | 327.38 |
—— | (S)-N-(1-hydroxypropan-2-yl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-89-4 | C18H17NO5 | 327.337 |
—— | (R)-N-(1-hydroxypropan-2-yl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-87-2 | C18H17NO5 | 327.337 |
—— | 3-Hydroxy-4-bromoxanthone | 88498-80-0 | C13H7BrO3 | 291.101 |
—— | (R)-N-(2-hydroxypropyl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-92-9 | C18H17NO5 | 327.337 |
—— | (S)-N-(2-hydroxypropyl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-96-3 | C18H17NO5 | 327.337 |
—— | 4-amino-3-hydroxy-9H-xanthen-9-one | 81008-66-4 | C13H9NO3 | 227.219 |
—— | 3-[3-(Benzylmethylamino)propoxy]xanthen-9-one | 164934-29-6 | C24H23NO3 | 373.452 |
—— | chromeno[2,3-a]xanthene-8,14-dione | —— | C20H10O4 | 314.297 |
—— | (S)-N-(1-hydroxy-3-methylbutan-2-yl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-80-5 | C20H21NO5 | 355.39 |
—— | (R)-N-(1-hydroxy-3-methylbutan-2-yl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-78-1 | C20H21NO5 | 355.39 |
3-氨基-9H-氧杂蒽-9-酮 | 3-amino-9H-xanthen-9-one | 27231-26-1 | C13H9NO2 | 211.22 |
—— | 3-[4-(Benzyl-methyl-amino)-butoxy]-xanthen-9-one | 164934-30-9 | C25H25NO3 | 387.478 |
—— | 3-[N-methyl-N-(3-hydroxybenzyl)amino]propoxyxanthen-9-one | 164934-44-5 | C24H23NO4 | 389.451 |
—— | (R)-N-(1-hydroxy-4-methylpentan-2-yl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-82-7 | C21H23NO5 | 369.417 |
—— | (S)-N-(1-hydroxy-4-methylpentan-2-yl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1542743-84-9 | C21H23NO5 | 369.417 |
—— | 3-[[4-[N-methyl-N-(3-hydroxybenzyl)amino]-2-butynyl]oxy]xanthen-9-one | 380363-82-6 | C25H21NO4 | 399.446 |
—— | 3-[N-methyl-N-(3-hydroxybenzyl)amino]butoxyxanthen-9-one | 164934-45-6 | C25H25NO4 | 403.478 |
—— | 3-[5-[(3-Hydroxyphenyl)methyl-methylamino]pentoxy]xanthen-9-one | 213891-11-3 | C26H27NO4 | 417.505 |
—— | 3-[[[N-methyl-N-(3-hydroxybenzyl)amino]hexyl]oxy]xanthen-9-one | 380364-01-2 | C27H29NO4 | 431.532 |
—— | 3-[[[N-methyl-N-(3-hydroxybenzyl)amino]heptyl]oxy]xanthen-9-one | 380364-02-3 | C28H31NO4 | 445.558 |
—— | 3-[[[N-methyl-N-(3-hydroxybenzyl)amino]decyl]oxy]xanthen-9-one | 380364-06-7 | C31H37NO4 | 487.639 |
—— | 3-[[[N-methyl-N-(3-hydroxybenzyl)amino]octyl]oxy]xanthen-9-one | 380364-03-4 | C29H33NO4 | 459.585 |
—— | 3-[[[N-methyl-N-(3-hydroxybenzyl)amino]nonyl]oxy]xanthen-9-one | 380364-05-6 | C30H35NO4 | 473.612 |
—— | 3-Allyloxy-4-bromoxanthone | 88498-81-1 | C16H11BrO3 | 331.166 |
—— | 3-hydroxy-4-allylxanthenone | 731-66-8 | C16H12O3 | 252.269 |
—— | 3-(allyloxy)-4-amino-9H-xanthen-9-one | 1373220-51-9 | C16H13NO3 | 267.284 |
—— | 3-Acetoxy-4-bromoxanthone | 88498-91-3 | C15H9BrO4 | 333.138 |
—— | 9-oxo-9H-xanthene-3-carboxylic acid | 106269-39-0 | C14H8O4 | 240.215 |
—— | (S)-2-((9-oxo-9H-xanthen-3-yl)oxy)-N-(1-(p-tolyl)ethyl)acetamide | 1542743-76-9 | C24H21NO4 | 387.435 |
—— | (R)-2-((9-oxo-9H-xanthen-3-yl)oxy)-N-(1-(p-tolyl)ethyl)acetamide | 1542743-74-7 | C24H21NO4 | 387.435 |
—— | O-ethyl O-(xanthen-9-one-3-yl) S-propyl phosphorothiolothionate | 80553-20-4 | C18H19O4PS2 | 394.452 |
—— | (R)-N-(2-hydroxy-1-phenylethyl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1262893-91-3 | C23H19NO5 | 389.408 |
—— | (S)-N-(2-hydroxy-1-phenylethyl)-2-((9-oxo-9H-xanthen-3-yl)oxy)acetamide | 1379779-05-1 | C23H19NO5 | 389.408 |