Isostructural pseudopolymorphs of...

Details Isostructural pseudopolymorphs of... Isostructural pseudopolymorphs of...

2003-03-17

2009-08-04

Peselev, Elli (Department: 1623)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

C536S007400

Reexamination Certificate

active

07569549

ABSTRACT:
Substantially pure isostructural pseudopolymorphs of 9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin A having the Formula I:wherein S is an organic solvent which is at least partially miscible with water, x is 1, 1.25, 1.5 or 2, y is 0, 0.5, or 1, the pseudopolymorph being characterized by the monoclinic space group P21and average unit cell parameters comprising: crystal axis lengths of a=15.5-17.0 Å, b=15.5-17.0 Å, and c=17.5-19.5 Å, and angles between the crystal axes of α=γ=90° and β=106°-112°. In addition, this disclosure is directed to processes for the preparation of the substantially pure isostructural pseudopolymorphs of Formula I; to pharmaceutical compositions containing substantially pure isostructural pseudopolymorphs of Formula I; and to a method for the treatment of bacterial and protozoan infections, and inflammation-related diseases by administration of a pharmaceutical composition containing the substantially pure isostructural pseudopolymorphs of Formula I.

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