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J Org Chem
; 82(24): 13626-13631, 2017 12 15.
Article
in English
| MEDLINE
| ID: mdl-29139295
ABSTRACT
An efficient and practical method for the synthesis of a variety of aminobenzopyranoxanthenes (ABPXs) with different nitrogen-containing fused rings was developed. On the basis of the mechanistic studies of the formation of the xanthene framework, the presented methodology was developed to facilitate access to previously inaccessible asymmetric ABPXs.