6-O-methylerythromycin A crystal form III
The present invention relates to a novel 6-O-methylerythromycin A crystal form, a process for preparing the crystal form, and methods for using the crystal form to prepare a 6-O-methylerythromycin A crystal form II.
Abbott Laboratories
A C
A61P C07H
inventional inventional
Jih-Hua Stephen G. Rodger F. David A.
Liu Spanton Henry Riley