| 摘要 |
<p>Prepn. of 5-phenyl 1,4-benzodiazepines of general formula 1 R1 = H, hal, CF3 R2 = H, C1-6 alkyl R3 = H, C1-6 alkyl, C2-6 alkenyl R4 = H, C1-6 alkyl R5 = H, hal, C1-6 alkyl Intermediates in synthesis of pharmacologically active 1,4-benzodiazepine derivs. e.g. 1 in which A = can be oxidised with mercury oxide to yield 3 and 1 in which A = can be dehydrated with thionyl chloride to yield 4.</p> |
