摘要 |
A novel process for preparing a compound of the formula I:whereinR<1 >denotes substituted or unsubstituted alkyl, alkoxy, aryl, aryloxy or arylalkoxy; R<2 >denotes substituted or unsubstituted alkyl, alkoxy, aryl, aryloxy, arylalkoxy, tosyl, formyl, acetyl or amine; and R<3 >denotes substituted or unsubstituted alkyl, alkoxy, aryl, aryloxy or arylalkoxy is disclosed. These compounds are useful in the synthesis of the antidepressant mirtazapine and other tetracyclic compounds.
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