Synthesis and Anticonvulsant Activity Evaluation of 7-Alkoxy[1,2,4]triazolo[3,4-<i>b</i>]benzothiazol-3(2<i>H</i>)-ones
作者:Da-Chuan Liu、Xian-Qing Deng、Shi-Ben Wang、Zhe-Shan Quan
DOI:10.1002/ardp.201300277
日期:2014.4
A new series of 7‐alkoxy[1,2,4]triazolo[3,4‐b]benzothiazol‐3(2H)‐ones were synthesized and evaluated for their anticonvulsantactivities. Among these compounds, 7‐propoxy[1,2,4]triazolo[3,4‐b]benzothiazol‐3(2H)‐one (4c) and 7‐butoxy[1,2,4]triazolo[3,4‐b]benzothiazol‐3(2H)‐one (4d) showed the highest activity against maximal electroshock (MES)‐induced tonic extension [effective dose (ED)50: 11.4 and
The synthesis of some 4<i>H</i>-pyrimido[2,1-<i>b</i>]benzothiazol-4-ones
作者:Robert J. Alaimo
DOI:10.1002/jhet.5570100515
日期:1973.10
A series of 8-substituted and 7,8-disubstituted-4-oxo-3-(4H-pyrimido[2,1-b]benzothiazole)carboxylic acids and esters including a 9-aza analog were synthesized from substituted 2-aminobenzothiazoles and diethyl ethoxymethylenemalonate. The 9-aza analog, ethyl 8-methoxy-4-oxo-3-(4H-pyrido[3′,2′:4,5]thiazolo[3,2-a]pyrimidine)carboxylate (56), represents the first preparation of this new heterocyclic ring
由取代的2-氨基苯并噻唑合成了一系列的8-取代和7,8-二取代-4-氧代-3-(4 H-嘧啶[ 2,1- b ]苯并噻唑)羧酸和酯,包括9-氮杂类似物。和乙氧基亚甲基丙二酸二乙酯。9-氮杂类似物,乙基8-甲氧基-4-氧代-3-(4 H-吡啶基[3',2':4,5]噻唑并[3,2- a ]嘧啶)羧酸盐(56)首先准备这个新的杂环。检查了这些化合物的抗寄生虫活性,但是未检测到显着活性。