Process for preparing dibenzothiazepine compounds

Details Process for preparing dibenzothiazepine compounds Process for preparing dibenzothiazepine compounds

C - Chemistry, Metallurgy

07

D

C07D 281/18 (2006.01) C07C 205/00 (2006.01) C07C 209/00 (2006.01)

Patent

CA 2642659

A dibenzothiazepine compound is suitably prepared by subjecting a 2-amino-2'-carboxy-diphenylsulfide compound to dehydration-condensation reaction in the presence of an acidic catalyst; the 2-amino-2'-carboxy-diphenylsulfide compound is suitably prepared by reducing a 2-nitro-2'-carboxy-diphenylsulfide compound in a lower aliphatic ester solvent; and the 2-nitro-2'-carboxy-diphenylsulfide compound is suitably prepared by reacting a nitrobenzene compound with a thiosalicylic acid compound in a mixture of a lower aliphatic alcohol and water.

Composés dibenzothiazépine élaboré de façon appropriée comme suit: on soumet un composé 2-amino-2'-carboxy-diphénylsulfure à une réaction de déshydratation-condensation en présence d'un catalyseur acide; le composé en question est élaboré de façon appropriée par réduction d'un composé 2-nitro-2'-carboxy-diphenylsulfure en solvant ester aliphatique inférieur; et le composé 2-nitro-2'-carboxy-diphénylsulfure est élaboré de façon appropriée par réaction entre un composé nitrobenzène et un composé d'acide thiosalicylique donnant un mélange d'alcool aliphatique inférieur et d'eau.

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