Triethylamine → HCID 54382107, compound

Participants

Reaction Steps

4-Thiomorpholinobenzoic acid (0.25 g, 1.1 mmol) was dissolved in thionyl chloride (25 mL). The excess of thionyl chloride was immediately evaporated in vacuo, the residue was treated with toluene and again the solvent was removed in vacuo. Crude acid chloride (107 mg, 0.44 mmol) was dissolved in methylene chloride (5 mL) and added dropwise to an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (104 mg, 0.42 mmol) and triethylamine (68 μL, 0.87 mmol) in methylene chloride (35 mL) . After the addition the reaction was allowed to stir at ambient temperature for 15 min and then washed with diluted aqueous sodium hydrogen carbonate. The phases were separated and the organic phase was dried (Na2SO4), filtered and evaporated in vacuo to give a crude product which was purified on a silica gel column using chloroform/methanol/concentrated ammonium hydroxide (95:5:0.5) as the eluent. Yield: 58 mg (31%) of the title compound as white crystals: mp 190-191° C.; [α]21D −86° (c 0.25, chloroform); EIMS (70 eV) m/z (relative intensity) 450 (2, M+).

Provenance & Evidence