A Scalable and Metal-Free Synthesis of Indazoles from 2-Aminophenones and In Situ Generated De-Boc-Protected O-Mesitylsulfonyl Hydroxylamine Derivatives
Imino-Indeno[1,2-c] quinoline derivatives, their preparation processes, and pharmaceutical compositions comprising the same
申请人:Tzeng Cherng-Chyi
公开号:US20090111987A1
公开(公告)日:2009-04-30
Disclosed herein are novel imino-indeno[1,2-c]quinoline derivatives of formula (I):
or a pharmaceutically acceptable salt or solvate thereof,
wherein each of the substituents is given the definition as set forth in the Specification and Claims.
Also disclosed are the preparation processes of these derivatives, their synthetic precursors and their uses in the manufacture of pharmaceutical compositions for use in the treatment of cancers.
NOVEL CARBAMATE AMINO ACID AND PEPTIDE PRODRUGS OF OPIOIDS AND USES THEREOF
申请人:Franklin Richard
公开号:US20110015182A1
公开(公告)日:2011-01-20
Carbamate linked prodrugs of meptazinol and other opioid analgesics are provided. The prodrug moiety may comprise a single amino acid or short peptide. Additionally, the present invention relates to methods for reducing gastrointestinal side effects in a subject, the gastrointestinal side effects being associated with the administration of an opioid analgesic. The methods comprise orally administering an opioid prodrug or pharmaceutically acceptable salt thereof to a subject, wherein the opioid prodrug is comprised of an opioid analgesic covalently bonded through a carbamate linkage to a prodrug moiety, and wherein upon oral administration, the prodrug or pharmaceutically acceptable salt minimizes at least one gastrointestinal side effect associated with oral administration of the opioid analgesic alone. Compositions for use with the method are also provided.
Electrosynthesis of 3-Chloro-1,4-disubstituted-2(1<i>H</i>)- quinolinones and 3,3-Dichloro-4-hydroxy-1,4-disubstituted- 3,4-dihydro-2(1<i>H</i>)-quinolinones, as Well as a New Convenient Process to Dioxindoles
作者:Belén Batanero、Fructuoso Barba
DOI:10.1021/jo0267403
日期:2003.5.1
reduction of N-(2-acyl(or aroyl)phenyl)-2,2,2,-trichloro-N-alkylacetamide at -1.2 V (vs SCE) under aprotic conditions yields 3-chloro-1,4-disubstituted-2(1H)-quinolinones (1) as the major product. When the reaction is carried out at -0.8 V (vs SCE), 3,3-dichloro-4-hydroxy-1,4-disubstituted-3,4-dihydro-2(1H)-quinolinones (2) and 1,4-disubstituted-1,4-dihydro-quinoline-2,3-dione (3) are formed. Ring contraction
Imidazo[1,2-a]pyridines are disclosed. Compounds of the invention are useful therapeutic agents and their inclusion in pharmaceutical formulations and use in methods of treatment are disclosed.