Synthesis of new pyrrolo[2,1-b]quinazolinones by original rearrangement of pyrrolo[2,1-c][1,4]benzodiazepines
1998
Abstract 1,10,11,11a-tetrahydropyrrolo[2,1- c ][1,4]benzodiazepin-5,11-diones 3a-d in concentrated hydrochloric acid rearranged into the new 2,3,4,4a-tetrahydropyrrolo[2,1- b ]quinazolin-9(1H)-one 1-car☐ylic acids 4a-d in a very good yield.
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