Abstract:
:Erythromycin A is normally formulated for children as its 2'-ethyl succinate, a taste-free prodrug. Unfortunately, the prodrug hydrolyzes at a measurable rate in the medicine bottle, leading to the vile-tasting erythromycin. We have prepared derivatives of erythromycin B as putative paediatric prodrugs, taking advantage of the much improved acid stability of erythromycin B relative to erythromycin A. Thus, erythromycin B enol ether ethyl succinate is very poorly soluble in water, and its hydrolysis is undetectable in conditions resembling the medicine bottle. In acid, however, it converts rapidly to erythromycin B 2'-ethyl succinate, and this is in turn hydrolyzed to erythromycin B in neutral and basic conditions. Derivatives of erythromycin B enol ether are therefore proposed as taste-free proprodrugs of erythromycin B.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Bhadra PK,Morris GA,Barber Jdoi
10.1021/jm049155ykeywords:
subject
Has Abstractpub_date
2005-06-02 00:00:00pages
3878-84issue
11eissn
0022-2623issn
1520-4804journal_volume
48pub_type
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