反应详情

温度

100 °C

Compound No. 78 (30 mg) obtained in Example 39 was dissolved in acetic acid (2 ml ) and 6N-HCl (0.5 ml). The solution was stirred at 100° C. for 0.5 hour. After cooling and addition of water (10 ml), the precipitate was filtrated and washed with ethanol and ether. The title compound No. 79 was obtained as a colorless solid (5 mg).

1. temperatureAfter cooling
2. filtrationthe precipitate was filtrated
3. washwashed with ethanol and ether