反应详情

The product of (d) above (3 g) was dissolved in 15 ml of methanol and stirred 8 hours at room temperature. The precipitate was filtered and recrystallised from methanol, m.p. 63°-65° C.

1. filtrationThe precipitate was filtered
2. customrecrystallised from methanol, m.p. 63°-65° C.