Intramolecular cyclization of steroidal semicarbazones to pyrazoles using Vilsmeier reagent
Mahboob Alam, M. Mushfiq
Intramolecular cyclization of steroidal semicarbazones to pyrazoles using Vilsmeier reagent
Mahboob Alam, M. Mushfiq
中国化学快报 . 2008, (02): 133 -136 .  DOI: 10.1016/j.cclet.2007.11.027