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IMIDAZO(2,1-B)BENZOTHIAZOLE DERIVATIVE OR IMIDAZO(2,1-B) BENZOXAZOLE DERIVATIVE AND THEIR PREPARATION
IMIDAZO(2,1-B)BENZOTHIAZOLE DERIVATIVE OR IMIDAZO(2,1-B) BENZOXAZOLE DERIVATIVE AND THEIR PREPARATION
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机译:咪达唑(2,1-B)苯并噻唑衍生物或咪达唑(2,1-B)苯并唑衍生物及其制备
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摘要
NEW MATERIAL:The compound of formula I [R1 is lower alkyl, lower alkoxy- substituted aralkyl, or phenylureidoethyl of formula II (R4 is H or lower alkyl; R5 is halogen, lower alkyl, etc.; n is 0, 1 or 2); R2 is H, halogen, etc.; R3 is H, lower alkyl, lowr haloalkyl or phenyl; X is O or S; Y is H or halogen] and its salt. EXAMPLE:5-( 2-Hydroxy-3-phenylureidoethylaminopropoxy )-2-methylimidazo[ 2,1- b]benzothiazole. USE:A beta-receptor blocking agent. It suppresses the increase of pulse rate caused by isoproterenol and the relaxation of the histamine-induced constricted smooth muscle of the trachea. PREPARATION:The compound of formula I can be prepared by reacting the novel compound of formula III with the compound of formula R1NH in an inert solvent such as methanol, ethanol, etc.
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机译:新材料:式I的化合物[R1为低级烷基,低级烷氧基取代的芳烷基或式II的苯基脲基乙基(R4为H或低级烷基; R5为卤素,低级烷基等; n为0、1或2 ); R 2为H,卤素等; R3为H,低级烷基,低级卤代烷基或苯基; X是O或S; Y是H或卤素]及其盐。实施例:5-(2-羟基-3-苯基脲基乙基氨基丙氧基)-2-甲基咪唑并[2,1-b]苯并噻唑。用途:一种β受体阻断剂。它抑制了由异丙肾上腺素引起的脉搏频率的增加以及组胺诱导的气管收缩平滑肌的松弛。制备:式I化合物可通过在惰性溶剂如甲醇,乙醇等中将新型式III化合物与式R1NH化合物反应制得。
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