反应详情

The product of step 1 of Example 12 (50 mg, 0.12 mmol) in CH2Cl2 (2 mL) at 5° C. is treated with trifluoroacetic acid (0.5 mL), stirred 30 minutes at room temperature, diluted with toluene, and concentrated to give the title compound, which is carried on to the next step without purification m/z (Cl) 276 [M+H].

1. concentrationconcentrated