text: Since this compound retains good << AChE >> inhibitory activity and its [[ hexahydrochromeno[4,3-b]pyrrole ]] moiety is reminiscent of the hexahydropyrrolo[2,3-b]indole of physostigmine (3), we have designed and synthesized carbamates 4-6, and their biological evaluation has been assessed in vitro against human AChE and BChE.