Binap, (A+-)- → HCID 71255219, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-(4-chloro-6-methylquinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide (372 mg, 1.0 mmol, prepared in analogy to the one in Example 17-1), tert-butyl [(3-aminooxetan-3-yl)methyl]carbamate (202 mg, 1.0 mmol), tris(dibenzylideneacetone)dipalladium(0) (91 mg, 0.10 mmol), 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (62 mg, 0.10 mmol) and sodium tert-buoxide (192 mg, 2.0 mmol) in toluene (10 mL) was heated at 110° C. overnight. The resulting mixture was diluted with water (20 mL), and extracted with dichloromethane (20 mL×3). The combined organic layers were washed with brine (50 mL), dried over sodium sulfate, and concentrated in vacuo. The residue was purified by preparative HPLC to afford 15 mg of the title compound. MS obsd. (ESI+) [(M+H)+] 465, 1H NMR (400 MHz, DMSO-d6) δ ppm 8.15 (s, 1 H), 7.98-7.96 (d, J=7.2 Hz, 1 H), 7.90-7.87 (m, 1 H), 7.68-7.64 (m, 1 H), 7.53-7.46 (m, 2 H), 7.37-7.34 (m, 2 H), 7.17 (s, 1 H), 5.14 (s, 2 H), 4.80-4.74 (m, 4 H), 4.44 (s, 2 H), 4.27 (s, 2 H), 3.66-3.64 (t, J=4.8, 4.4 Hz, 2 H), 2.36 (s, 3 H).

Provenance & Evidence