methyl 2-[(4S)-4-hydroxy-4-methyl-1,2-oxazolidine-2-carbonyl]benzoate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 2-[[(2R)-3-Chloro-2-hydroxy-2-methylpropyl]oxy]-1H-isoindole-1,3 (2H)-dione (3.3 g, 12.2 mmol) in methanol (25 ml) was treated with triethylamine (3.4 ml) and heated under nitrogen at reflux for 1 h. The mixture was concentrated to dryness and purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane. The chiral purity of the product was enhanced by recrystallising twice from acetonitrile to give the sub-title compound as a colourless solid (1.92 g). heated under nitrogen at reflux for 1 h The mixture was concentrated to dryness purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane by recrystallising twice from acetonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 2-[[(2R)-3-Chloro-2-hydroxy-2-methylpropyl]oxy]-1H-isoindole-1,3 (2H)-dione (3.3 g, 12.2 mmol) in methanol (25 ml) was treated with triethylamine (3.4 ml) and heated under nitrogen at reflux for 1 h. The mixture was concentrated to dryness and purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane. The chiral purity of the product was enhanced by recrystallising twice from acetonitrile to give the sub-title compound as a colourless solid (1.92 g). heated under nitrogen at reflux for 1 h The mixture was concentrated to dryness purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane by recrystallising twice from acetonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 2-[[(2R)-3-Chloro-2-hydroxy-2-methylpropyl]oxy]-1H-isoindole-1,3 (2H)-dione (3.3 g, 12.2 mmol) in methanol (25 ml) was treated with triethylamine (3.4 ml) and heated under nitrogen at reflux for 1 h. The mixture was concentrated to dryness and purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane. The chiral purity of the product was enhanced by recrystallising twice from acetonitrile to give the sub-title compound as a colourless solid (1.92 g). heated under nitrogen at reflux for 1 h The mixture was concentrated to dryness purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane by recrystallising twice from acetonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 2-[[(2R)-3-Chloro-2-hydroxy-2-methylpropyl]oxy]-1H-isoindole-1,3 (2H)-dione (3.3 g, 12.2 mmol) in methanol (25 ml) was treated with triethylamine (3.4 ml) and heated under nitrogen at reflux for 1 h. The mixture was concentrated to dryness and purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane. The chiral purity of the product was enhanced by recrystallising twice from acetonitrile to give the sub-title compound as a colourless solid (1.92 g). heated under nitrogen at reflux for 1 h The mixture was concentrated to dryness purified by chromatography eluting with a gradient from dichloromethane to 5% methanol in dichloromethane by recrystallising twice from acetonitrile