405939-39-1

基本信息
2-(BOC-氨基)-5-溴噻唑
N-叔丁氧羰基-2-氨基-5-溴噻唑
(5-溴噻唑-2-基)氨基甲酸叔丁酯
5 -溴- 2 -(N-甲酸叔丁酯)氨基噻唑
N-BOC-2-AMINO-5-BROMOTHIAZOLE
N-Boc-2-Amino-5-bromothiazole95%
TERT-BUTYL 5-BROMOTHIAZOL-2-YLCARBAMATE
tert-butyl N-(5-bromothiazol-2-yl)carbamate
TERT-BUTYL (5-BROMO-1,3-THIAZOL-2-YL)CARBAMATE
tert-butyl N-(5-broMo-1,3-thiazol-2-yl)carbaMate
(5-BroMo-thiazol-2-yl)-carbaMic acid tert-butyl ester
2-amino-5-bromo-2H-thiazole-3-carboxylic acid tert-butyl ester
Carbamic acid, N-(5-bromo-2-thiazolyl)-, 1,1-dimethylethyl ester
物理化学性质
制备方法

24424-99-5

61296-22-8

405939-39-1
以二碳酸二叔丁酯和2-氨基-5-溴噻唑氢溴酸盐为原料合成N-BOC-2-氨基-5-溴噻唑的一般步骤:将二碳酸二叔丁酯[(Boc)2O, 100.7 g, 0.461 mol, 1.2当量]加入到含有2-氨基-5-溴噻唑单氢溴酸盐(100 g, 0.385 mol, 1.0当量)和4-(二甲基氨基)吡啶(DMAP, 1.18 g, 9.7 mmol, 0.025当量)的900 mL THF和135 mL Et3N混合溶液中。使用冰浴将反应混合物冷却至0℃。随后,将反应混合物在室温下搅拌过夜,之后进行真空浓缩。将残余物在EtOAc/庚烷(1:10, 250 mL)中于室温搅拌过夜,然后过滤。滤液用盐水洗涤,干燥,过滤,并真空浓缩,得到中间体N-BOC-2-氨基-5-溴噻唑,为黄色固体(收率91%)。
参考文献:
[1] Synthesis, 2010, # 7, p. 1091 - 1096
[2] Patent: WO2018/112136, 2018, A1. Location in patent: Paragraph 00261
[3] Patent: US2009/36467, 2009, A1. Location in patent: Page/Page column 64; 72; 73
[4] Patent: US2012/108591, 2012, A1. Location in patent: Page/Page column 29
[5] Patent: WO2015/25172, 2015, A1. Location in patent: Page/Page column 118; 119