Process for preparing tetrahydro(2,1-d)-benzo(f)(1,4) - diazepin - 6(7h)- ones and intermediates
    1.
    发明授权
    Process for preparing tetrahydro(2,1-d)-benzo(f)(1,4) - diazepin - 6(7h)- ones and intermediates 失效
    制备四氢呋喃(2,1-D) - 苯并(F)(1,4) - 二氮杂-6(7H) - 钠和中间体的方法

    公开(公告)号:US3579502A

    公开(公告)日:1971-05-18

    申请号:US3579502D

    申请日:1967-01-16

    Abstract: IN THE INSTANT CASE, THERE IS DISCLOSED VARIOUS PROCESSES FOR PREPARING 5,9,10,14B-TETRAHYDROISOQUINO(2,1-D)BENZO (F)(1,4)DIAZEPIN-6(7H)-ONES(A). IN ONE IMPORTANT PROCESS VARIATION, A 1-(O-AMINO-PHENYL)-3,4-DIHYDROISOQUINOLINE(B) IS REACTED WITH A MEMBER CAPABLE OF PROVIDING A HALO-LOWER ALKANOYL GROUP SUCH AS HALO LOWER ALKANOYL HALIDE TO GIVE A NOVEL (2H-HALO-LOWER ALKANOYL-AMINOPHENYL)(C) DERIVATIVE. C IS THEN RING CLOSED TO A NOVEL 6OXO-6,7,9,10 TETRAHYDROISOQUINO(2,1-D)BENZO(F)(1,4)DIAZEPIN-(8)-IUM(D). D IS THEN REDUCED TO A. IN ANOTHER IMPORTANT PROCESS VARIATION, B OR A 1-(ONITRO-PHENYL)-3,4-DIHYDROISOQUINOLINE IS TREATED WITH AN A-SUBSTITUTED ACETIC ACID DERIVATIVE. THE RESULTING PRODUCT IS REDUCED AND RING CLOSED AT ELEVATED TEMPERATURE TO A. COMPOUNDS A ARE USEFUL FOR PHARMACEUTICAL PURPOSES, E.G. AS SEDATIVES, AS TRANQUILIZERS, AS ANTI-CONVULSANTS AND AS MUSCLE RELAXANTS.

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