A recreational marijuana company is in the process of opening a dispensary at the old 7-Eleven spot on Centre Street. Prolific Cannabis recently signed a 10-year lease for the vacant commercial storefront at 684 Centre St., said CEO Eric Lawrence to Jamaica Plain News. Prolific Cannabis has been approved to open a recreational marijuana dispensary in Allston, and hopes to do so in that neighborhood by the end of the year. Representatives of Prolific Cannabis recently met with the Jamaica Pond Association to talk about their business on July 11. Lawrence hopes to open its Jamaica Plain store by May 2023.