1374529 Benzodiazepines BOEHRINGER INGELHEIM GmbH 26 Jan 1972 [27 Jan 1971] 3719/72 Heading C2C Compounds of the general formula (RSP1/SP=H, alkyl, alkenyl, hydroxyalkyl, cycloalkylalkyl; R 2 =unsubstituted or substituted Ph or Py; R 3 = halogen, CF 3 , NO 2 ) are prepared by (a) reducing a compound of the formula (b) mild oxidation of a compound of the formula (R 4 , R 5 =H, alkyl), or (c) reacting a compound of the formula (R 1 not H) with water, optionally followed in the case of (a) and (b) by introduction of a 1- substituent. The above compounds are tranquilizers and anti-convulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
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