Solvent-Promoted E2 Reaction Competing with SN2 Reaction and Stepwise Solvolytic Elimination and Substitution Reactions
作者:Qingshui Meng、Alf Thibblin
DOI:10.1021/ja00142a003
日期:1995.9
Solvolysis of 9-(1-X-ethyl)fluorene (1-X, X = I, Br, Cl, OTs, or OBs) in 25 vol % acetonitrile in water gives the elimination products 9-(1-ethylidene)fluorene (3) and 9-vinylfluorene (2) and the substitution products 9-(1-hydroxyethyl)fluorene (1-OH) an
PRODRUGS AND DRUG-MACROMOLECULE CONJUGATES HAVING CONTROLLED DRUG RELEASE RATES
申请人:Santi Daniel V.
公开号:US20110263502A1
公开(公告)日:2011-10-27
The present invention provides methods and compositions that permit controlled and prolonged drug release in vivo. The compounds are either prodrugs with tunable rates of release, or conjugates of the drug with macromolecules which exhibit tunable controlled rates of release.
The present application provides compounds of Formula (I):
or pharmaceutically acceptable salts thereof, wherein D is a residue of a GLP-polypeptide or an analog thereof, which underdo hydrolysis under physiological conditions to release the GLP-polypeptide or analog thereof and which are useful in the treatment of disorders that could be beneficially treated with the GLP-polypeptide or analog thereof.