1,2,4-Thiadiazino[3,4-b]benzothiazole: A New Cyclic Sulphenimine
摘要:
3,4-Dihydro-8-trifluoromethoxy-1,2,4-thiadiazino [3,4-b]benzothiazole (2) was prepared in five steps from 6-trifluoromethoxy-2-benzothiazolamine (riluzole, 1). The key final step consisted of an original N-S bond forming reaction between unsubstituted imine and thiol groups, using chloramine-T as reagent (75% yield).
[EN] PROPARGYL-TRIFLUOROMETHOXY-AMINO-BENZOTHIAZOLE DERIVATIVES<br/>[FR] DERIVES DE PROPARGYL-TRIFLUOROMETHOXY-AMINO-BENZOTHIAZOLE
申请人:TEVA PHARMA
公开号:WO2004047756A2
公开(公告)日:2004-06-10
The subject invention provides compounds having the structure (I): wherein R1 is present or absent, and when present is H, C1-C6alkyl, C1-C6 alkynyl, - (CH2)yS (CH2 )xCH3, C1-C6 aminoalkyl, C1-C6 hydroxyalkyl or -(CH2)nC(=0) (C6H4) (CH2)R2; R2 is H or C1-C4 alkyl; R3 is H or C1-C4 alkyl; R4 is present or absent, and when present is H, C1-C6 alkyl, C1-C6 alkynyl, - (CH2) yS (CH2) xCH3 , C1-C6 aminoalkyl, C1-C6 hydroxyalkyl or -(CH2) nC (=O) (C6H4) (CH2) R2; wherein n is an integer from 1-6; wherein x is 0 or an integer from 1-5 and y is an integer from 1-5, such that x+y<6; at least one of R1 or R4 is present; the dashed line represents a bond between one of the nitrogen atoms and the intervening carbon atom; and any compound is charged when both R1 and R4 are present, or any specific enantiomer thereof or any pharmaceutically acceptable salt thereof, and a method for treating a neurologic disorder or multiple sclerosis by administering a therapeutically effective amount any of the compounds..