Manufacture of tetramisole
    42.
    发明授权
    Manufacture of tetramisole 失效
    四面体的制造

    公开(公告)号:US3845070A

    公开(公告)日:1974-10-29

    申请号:US27029872

    申请日:1972-07-10

    申请人: ICI LTD

    发明人: MCMENIM M

    摘要: 1. A PROCESS FOR THE MANUFACTURE OF COMPOUNDS OF THE FORMULA:

    6-R1-2,3,5,6-TETRAHYDRO-IMIDAZO(2,1-B)THIAZOLE

    WHEREIN R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENYL, NITROPHENYL, AMINOPHENYL AND TOLYL, AND PHARMACEUTICALLY-ACCEPTABLE ACID-ADDITION SALTS THEREOF, WHICH COMPRISES: (A) REACTING A THIAZOLIDINE DERIVATIVE OF THE FORMULA: 2-(R2-N=),3-(R1-CH(-NH2)-CH2-)THIAZOLIDINE OR AN ACID-ADDITION SALT THEREOF, IN WATER AT A PH BELOW 8 AND AT 80 TO 150*C,; OR (B) REACTING SAID THIAZOLIDINE DERIVATIVE, OR AN ACIDADDITION SALT THEREOF, IN WATER WITH NITROUS ACID AT APPROXIMATELY ROOM TEMPERATURE; OR (C) HEATING A SAID THIAZOLIDINE ACID-ADDITION SALT AT TO 300*C.; OR (D9 HEATING A SAID THIAZOLIDINE ACID-ADDITION ASALT AT 100 TO 150*C. IN A DIPOLAR APROTIC SOLVENT; WHEREIN R1 HAS THE MEANING STATED ABOVE, AND R2 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL OR NOT MORE THAN 5 CARBON ATOMS, ALKENYL OF NOT MORE THAN 5 CARBON ATOMS, ARYL OF NOT MORE THAN 10 CARBON ATOMS, AND ARALKYL OF NOT MORE THAN 10 CARBON ATOMS.