I am doing some research on an antidepressant (amineptine) which has been pressured from the open market by our friends in the FDA . I have a BASIC synth recipie, but cannot find one of the main precursors: methyl 7-aminoenanthate

The other precursor dibenzosuberone is more available. The process goes as such: methyl 7-aminoenanthate + dibenzosuberone reacted through reductive alkylation with NaBH3CN to yeild amineptine methyl ester. Any help is welcome!! Thanks in advance.