Lorenzo Hernández, Melisa
(Universidad Michoacana de San Nicolás de Hidalgo, 2020-05)
The present work describes a methodology for obtaining of the new steroidal derivatives 5-6; from the acidic opening of 22-oxo-23-spirosapogenin 3 in the presence of ZnCl2 (Scheme 1). Products 4-6 were obtained in moderate ...