| 摘要 |
<p>prepn. Title cpds. of formula (I): (where R is H, halogen, CF3 or 1-7 C alkyl or alkoxy, R1 is 1-7 C alkyl and R2 is H, halogen or 1-7 C alkyl or alkoxy), which may readily be oxidized to corr. 2,3-dihydro-1H-1,4-benzodiazepines, which are pharmaceutically valuble, are prepd. by reacting a cpd. of formula (II): with an organometallic cpd. of formula R2PhA (where A is Li, MgBr, MgCl or MgI).</p> |
