| abstract |
The process for producing benzodiazepine derivatives useful for tranquilizer, WHEREIN R1 is hydrogen, C1 * C3 alkyl group or C4 * C7 cyclohexylmethyl group and R2 is hydrogen or halogens and X is halogens. 2-Amino-methylindole derivatives or their salts WHEREIN R1, R2 and X respectively have the same meanings as above is allowed to react with an appropriate oxidizing agent, such as for example, chromium trioxide. |