Exploring the Original Proposed Biosynthesis of (+)-Symbioimine: Remote Exocyclic Stereocontrol in a Type I IMDA Reaction
摘要:
The originally proposed biosynthesis of (+)-symbioimine was explored, resulting in the successful intramolecular Diels-Alder (IMDA) cyclization of an appropriate (E,E,E)-1,7,9-decatrien-3-one. In contrast to the originally proposed biosynthesis, the IMDA reaction appears to proceed via an endo transition state. Remarkably, a single exocyclic stereogenic center effectively controls the pi-facial selectivity affording a highly diastereoselective cycloaddition.
Hexahydrodiazepinones as dipeptidyl peptidase-iv inhibitors for the treatment or prevention of diabetes
申请人:Liang Gui-Bai
公开号:US20060211682A1
公开(公告)日:2006-09-21
The present invention is directed to hexahydrodiazepinone compounds which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
Hexahydrodiazepinones as dipeptidyl peptidase-IV inhibitors for the treatment or prevention of diabetes
申请人:Merck & Co., Inc.
公开号:US07259160B2
公开(公告)日:2007-08-21
The present invention is directed to hexahydrodiazepinone compounds which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
L-Aminodicarboxylic acid amides of substituted amines and a composition containing the same
申请人:GENERAL FOODS CORPORATION
公开号:EP0203540A1
公开(公告)日:1986-12-03
This invention relates to novel sweeteners of the formula:
wherein
A is hydrogen, alkyl containing 1-3 carbon atoms, hydroxyalkyl containing 1-3 carbon atoms, alkoxymethyl wherein the alkoxy contains 1-3 carbon atoms or CO2R5 in which R5 is alkyl containing 1-3 carbon atoms;
A' is hydrogen or alkyl containing 1-3 carbon atoms;
A and A' taken together with the carbon atoms to which they are attached form cycloalkyl containing 3-4 carbon atoms;
Y is -(CHR)n-R1, -CHR2R3 or R4;
R1 is cycloalkyl, cycloalkenyl, lower alkyl substituted cycloalkyl or cycloalkenyl, bicycloalkyl, bicycloalkenyl or tricycloalkyl containing up to 10 ring carbon atoms and up to a total of 12 carbon atoms;
R is H or alkyl containing 1-4 carbon atoms;
R2 and R3 are each cycloalkyl containing 3-4 ring carbon atoms;
R4 is alkyl containing up to 12 carbon atoms;
n=0 or 1; and
m=0 or 1;
and food-acceptable salts thereof.
The present invention provides a cyclic aminomethyl pyrimidine derivative and a pharmaceutically acceptable salt thereof with high selectivity for dopamine D4 receptors, which are useful for treating a disease such as attention deficit hyperactivity disorder. Specifically, a compound of formula (1) or a pharmaceutically acceptable salt thereof is provided, wherein n and m are independently 1 or 2; Ra is C1-6 alkyl group, C3-6 cycloalkyl group, or amino group; Rb is hydrogen atom, C1-6 alkyl group or the like, provided that when Ra is amino group, then Rb is hydrogen atom; Rc1 and Rc2 are independently hydrogen atom, or C1-6 alkyl group; Rd1 and Rd2 are independently hydrogen atom, fluorine atom or the like; ring Q is an optionally-substituted pyridyl group or an optionally-substituted isoquinolyl group; and the bond having a dashed line is a single or double bond.
The invention relates to novel heteroaryl compounds of Formula (I) and pharmaceutical preparations thereof. The invention further relates to methods of treating or preventing cardiovascular diseases, and methods treating sepsis or septic shock, using the novel heterocyclic compounds disclosed herein.