中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-甲氧基-6-硝基-苯并噻唑 | 2-Methoxy-6-nitro-benzothiazol | 4308-10-5 | C8H6N2O3S | 210.213 |
2-巯基-6-硝基苯并噻唑 | 2-mercapto-6-nitrobenzothiazole | 4845-58-3 | C7H4N2O2S2 | 212.253 |
2-氯-6-硝基苯并噻唑 | 2-chloro-6-nitrobenzothiazole | 2407-11-6 | C7H3ClN2O2S | 214.632 |
2-甲氧基苯并噻唑 | 2-methoxybenzothiazole | 63321-86-8 | C8H7NOS | 165.216 |
Some mono- and bis-dimethylaminoethylthio, dimethylaminopropylthio and carbamoylmethylthio derivatives of pyridine, pyridazine , 1,3,4- thiadiazole , thiazoline , quinoline , quinoxaline , quinazoline , phthalazine , 6-nitrobenzothiazole and benzimidazo [1,2-c] quinazoline have been prepared for testing as amplifiers of phleomycin. These compounds showed relatively low activity; the highest activity was shown by 4-(2′-dimethylaminoethylthio) quinoline at three star, but a number were antibacterial under the test conditions.
2-Cyanobenzothiazoles (CBTs) are useful building blocks for: 1) luciferin derivatives for bioluminescent imaging; and 2) handles for bioorthogonal ligations. A particularly versatile CBT is 6-amino-2-cyanobenzothiazole (ACBT), which has an amine handle for straight-forward derivatisation. Here we present an economical and scalable synthesis of ACBT based on a cyanation catalysed by 1,4-diazabicyclo[2.2.2]octane (DABCO), and discuss its advantages for scale-up over previously reported routes.