反应详情

The product from Example 306C in anhydrous pyridine (1.5 mL) was cooled at 0° C. and treated with methane sulfonyl chloride (0.042 mL, 0.54 mmoles) at 0° C. for 1 hour, then room temperature for 1 hour. The reaction mixture concentrated in vacuo, residue dissolved in dichloromethane, filtered and filtrate concentrated in vacuo to provide the title compound.

1. concentrationThe reaction mixture concentrated in vacuo, residue
2. dissolutiondissolved in dichloromethane
3. filtrationfiltered
4. concentrationfiltrate concentrated in vacuo