ETHYL 2-(BROMOMETHYL)BENZOATE

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: To a suspension of 3.41 g of powdered KOH in 110 ml of DMSO was added at 22° C. 6.00 g of {4-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-carbamic acid tert-butyl ester and the suspension was stirred for 25 min. A solution of 7.40 g of 2-bromomethyl-benzoic acid ethyl ester in 10 ml of DMSO was added slowly keeping the temperature at 15-20° C. and stirring was continued at 22° C. for 2.5 h. The dark mixture was partitioned between 500 ml of a saturated aqueous NH4Cl and 200 ml of AcOEt, the organic layer was washed with saturated aqueous NH4Cl and water, dried and evaporated. The residue was purified by chromatography (SiO2, n-hexane/AcOEt 4:1) to give 7.96 g of the title compound as a pale yellow oil. MS: (M+H)+ 557.3. was added at 22° C at 15-20° C. The dark mixture was partitioned between 500 ml of a saturated aqueous NH4Cl and 200 ml of AcOEt the organic layer was washed with saturated aqueous NH4Cl and water dried evaporated The residue was purified by chromatography (SiO2, n-hexane/AcOEt 4:1)

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: By using 2-bromomethyl-benzoic acid ethyl ester and 4-aminocinnamic acid ethyl ester instead of 2-bromomethyl-6-nitro-benzoic acid methyl ester and aniline used in Example 25, synthesis was performed in the same manner as that of Example 25 to obtain 3-[4-(1-oxo-1,3-dihydro-isoindol-2-yl)-phenyl]-acrylic acid ethyl ester (Compound 23) as white crystals. used in Example 25, synthesis