spectrometry. In vitro toxicity was performed with B16 melanoma cells and showed that the connection of hydrophilic nido-carborane to quinazoline moiety decreases the compound's toxicity. This cytotoxicity effect was not observed in the nido-carborane containing two cluster units which was relatively nontoxic and did not inhibit colony formation up to concentrations of 300 μg boron ml−1. The compounds
设计了新型的结构不同的
硼化
喹唑啉类,其含
硼量为22-37%(重量),可潜在地应用于肿瘤的BNCT。首先,ö -carborane笼经由
硫醚接头连接到
喹唑啉在C-2位:2-小号- (1,2- dicarba-闭合碳-dodecaboran(12)-1基甲基)-
3-苯基喹啉-4(3H H)一。其次,邻-甲
硼烷笼通过醚键与C-4位的
喹唑啉部分连接:4- O-(邻-甲碳烷-1-基甲基)-
2-甲基喹唑啉。最后,碳
硼烷结构部分也连接到
喹唑啉的C-6位置:6- [ Ñ - 3-(2-甲基-1,2- dicarba-闭合碳-dodecaboran(12)-1-基)甲基} benzylidinamino]
喹唑啉-4(3 H ^) -酮和6- [ Ñ - 3,5-二(2-甲基-1,2- dicarba-闭合碳-dodecaboran( 12)-1-基)甲基}苄基
氨基]
喹唑啉-4(3 H)-一。通过将邻
氨基