反应条件
sulfuric acid a) from 20 deg C to 25 deg C, 3 d, b) reflux, 4.5 h;
参考文献
Piper, James R.; DeGraw, Joseph I.; Colwell, William T.; Johnson, Cheryl A.; Smith, R. Lane; Waud, William R.; Sirotnak, Francis M.
Journal of Medicinal Chemistry, 1997 , vol. 40, # 3 p. 377 - 384