Synthesis of novel 1-substituted [1,3]thiazolo[3,2-<i>a</i>]-[1,5]benzodiazepine derivatives from 1,5-benzodiazepine-2-thiones and α-halogen carbonyl compounds
作者:Regina Janciene、Zita Stumbreviciute、Daiva Podeniene、Benedikta D. Puodziunaite、Steve Black、Stephen M. Husbands
DOI:10.1002/jhet.5570430424
日期:2006.7
A number of substituted 4H,5H,6H-thiazolo[3,2-a][1,5]benzodiazepinium salts 2a-h, 5, 9, which are based on the novel thiazolobenzodiazepine system, were prepared by condensation-cyclization of 1,5-benzodiazepine-2-thiones 1a-f, h, 4 with α-haloketones, as well as with α-bromoacetaldehyde diethyl acetal. The structure and stereochemistry of the ring system obtained were investigated by 1H and 13C nmr
通过1的缩合环化反应制备许多取代的4H,5H,6H-噻唑并[3,2- a ] [1,5]苯并二氮杂pin盐2a-h, 5,9,它们是基于新型的噻唑并二氮杂卓系统。带有α-卤代酮以及α-溴乙醛二乙缩醛的1,5-苯并二氮杂-2-硫酮1a-f,h,4。通过1 H和13 C nmr光谱研究获得的环系统的结构和立体化学:发现额外的杂环核显着影响七原子环的构象迁移率。假定用碱处理盐2d后,溶液中存在碱烯胺结构。