Abstract
This paper is concerned with the subject of sustained release of drugs from polymeric matrices. Until now only a few examples are available where steroids are covalently bonded to a polymeric system and no data are available about the coupling of steroids to biodegradable polymers. In this paper the authors report a new derivatization of 17 alpha -ethynyl-17 beta -hydroxy steroids which report applicable for attachment to biodegradable poly( alpha -amino acids). The reports covers the following topics - syntheses; in-vivo pharmacokinetic study; in-vitro lability study of carbonate bond between NE and the Spacer Group; in-vitro hydrolysis of compounds VI and VII; in vitro release of drug from compound VIII; immunologic and biocompatibility studies.
| Original language | English |
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| Pages | 20-23 ACPPAY |
| Publication status | Published - 1 Sept 1979 |
| Event | Symposium on Polypeptides and Proteins 1979 - Washington, United States Duration: 10 Sept 1979 → 14 Sept 1979 |
Conference
| Conference | Symposium on Polypeptides and Proteins 1979 |
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| Country/Territory | United States |
| City | Washington |
| Period | 10/09/79 → 14/09/79 |