1,2-Dichlorobenzene → HCID 117986005, compound

Participants

Reaction Steps

To a solution of 2-amino-1-[(1R,2S,3S,4R,5S)-2,3,4-tribenzyloxy-5-[4-chloro-3-[(4-ethoxyphenyl) methyl]phenyl]-6,8-dioxabicyclo[3.2.1]octan-1-yl]ethanol 10b (205 mg, 0.28 mmol) in a methanol/tetrahydrofuran mixture (v/v=4/1, 25 mL) were added o-dichlorobenzene (0.16 mL, 1.42 mmol) and 10% Pd/C (32 mg, 0.03 mmol) at room temperature. The mixture was stirred at room temperature under H2 for 4 hours and filtered. The filter cake was washed with a tetrahydrofuran/methanol mixture (v/v=1/4, 10 mL×2) and the filtrate was concentrated in vacuo. The residue was purified by silica gel chromatography eluted with EtOAc to give the title compound 10 as colorless oil (36 mg, 25.7%, HPLC: 98.0%). The compound was characterized by the following spectroscopic data: MS (ESI, pos. ion) m/z: 466.0[M+H]+; and 1H NMR (400 MHz, DMSO-d6) δ(ppm): 7.73 (s, 2H), 7.42 (m, 2H), 7.31 (m, 1H), 7.09 (m, 2H), 6.82 (m, 2H), 5.52 (d, 2H), 5.02 (d, 2H), 3.95 (m, 5H), 3.72 (d, 1H), 3.61 (d, 1H), 3.48 (m, 2H), 3.14 (m, 1H), 2.69 (m, 1H), 1.28 (t, 3H).

Provenance & Evidence