Pyridine → HCID 59623756, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of Compound No. A2 (Example 3.1) in dichloromethane (10 ml) was added pyridine (0.205 ml) followed by 2,2-dimethylpropionyl chloride (0.15 ml). The reaction mixture was heated to 40° C. for 4 hours and then stored at ambient temperature of 16 hours. The reaction mixture was partition between dichloromethane (30 ml) and aqueous hydrochloric acid (2M) (30 ml). The phases were separated. The aqueous layer was extracted with ethyl acetate. The combined organic extracts were concentrated. The residue was triturated with iso-hexane and dried under vacuum to give Compound No. B3 of Table B (408 mg) as a yellow solid.

Provenance & Evidence