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Organic Compounds -- Part Of The Class 532-570 Series > Azo Compounds Containing Formaldehyde Reaction Product As The Coupling Component > Carbohydrates Or Derivatives > O- Or S- Glycosides > Oxygen Containing Hetero Ring Having 12-19 Members (e.g., Methymycin, Carbomycin, Spiramycin, Etc.) > Erythromycin Or Derivative (e.g., Oleandomycin, Etc.) Erythromycin Or Derivative (e.g., Oleandomycin, Etc.)Erythromycin Or Derivative (e.g., Oleandomycin, Etc.) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/02/06 - 20060247427 - Process to obtain 6-o-methylerythromycin a (clarithromycin)_form ii The present invention provides a process for the preparation of 6-O-methylerythromycin A Form II comprising treating 6-O-methylerythromycin A with organic acid selected form trifluoroacetic acid, para-toluene sulphonic acid, oxalic acid or acetic acid and converting it into an organic salt of 6-O-methylerythromycin A, which can be neutralized by base to ... ### FreshPatents.com Support |