Sodium Bicarbonate → HCID 178502329, compound

Participants

Reaction Conditions

Reaction Steps

To methyl (S)-3-methyl-1-oxo-1-((S)-2-(7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-naphtho[1,2-d]imidazol-2-yl)pyrrolidin-1-yl)butan-2-ylcarbamate (190 mg, 0.36 mmol), tert-butyl 6-bromonaphthalene-1,2-diyldicarbamate (205 mg, 0.47 mmol), Pd(PPh3)4 (42 mg, 0.036 mmol). DME (1.5 mL) was added and followed by 1.08 mL 1M NaHCO3 aqueous solution. The reaction was purged with Ar and heated to 120° C. at microwave synthesizer for 0.5 hour. The reaction was cooled to room temperature and concentrated down. EtOAc was added and washed with sat. NaHCO3 aqueous (2×) and sat. NaCl aqueous (1×). The organic layer was concentrated down after drying over sodium sulfate and subject to silica gel chromatography with an eluent of ethyl acetate and hexane at a gradient of 40-100% with an ISCO column (12 g silica gel). The fractions containing product were combined and the solvent was removed under reduced pressure to provide the desired product (205 mg, 75%). MS (ESI) m/z 752 [M+H]+.

Provenance & Evidence