Bio- and Medicinally Compatible α-Amino-Acid Modification via Merging Photoredox and N-Heterocyclic Carbene Catalysis
摘要:
An N-heterocyclic carbene and photoredox cocatalyzed alpha-amino-acid decarboxylative carbonylation reaction is presented. This method displays good scope generality, providing a direct pathway to access various downstream alpha-amino ketones under bio- and medicinally compatible conditions. Moreover, this strategy is appealing to chemical biology because it has great potential for the chemical modification of peptides or the late-stage synthesis of keto-peptides.
Tricyclic amide and urea compounds useful for inhibition of G-protein
申请人:Schering Corporation
公开号:US05700806A1
公开(公告)日:1997-12-23
Novel compounds of Formula (7.0a), (7.0b) or (7.0c): ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the formula (7.0a), (7.0b) or (7.0c) to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
Cycloalkylcarbonylamino Acid Ester Derivative and Process for Producing The Same
申请人:Kobayashi Nobuo
公开号:US20090137799A1
公开(公告)日:2009-05-28
Cycloalkylcarbonylamino acid ester derivatives, which are raw material intermediates for a novel cycloalkane carboxamide derivative having an action that selectively inhibits cathepsin K, and a production process thereof, are provided.
A cycloalkylcarbonylamino acid ester derivative represented by formula (I), or a pharmaceutically acceptable salt thereof:
(wherein, R
1
and R
2
represent alkyl groups, alkenyl groups, alkynyl groups, aromatic hydrocarbon groups, heterocyclic groups, etc., R
8
represents an alkyl group having 1 to 6 carbon atoms, and ring A represents a cyclic alkylidene group having 5, 6 or 7 carbon atoms).
Novel compounds of Formula ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the formula to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
Tricyclic amide and urea compounds useful for inhibition of g-protein
申请人:Schering Corporation
公开号:US05719148A1
公开(公告)日:1998-02-17
A method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells is disclosed. The method comprises the administration of a compound of Formula 1.0: ##STR1## to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being. Novel compounds of formulas 5.0, 5.1 and 5.2, wherein R is --C(R.sup.20)(R.sup.21)(R.sup.46), and 5.3, 5.3A and 5.3B, wherein R is --N(R.sup.25)(R.sup.48), are disclosed. Also disclosed are processes for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3. Further disclosed are novel compounds which are intermediates in the process for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3.
Cycloalkylcarbonylamino Acid Derivative and Process For Producing The Same
申请人:Kobayashi Nobuo
公开号:US20090111983A1
公开(公告)日:2009-04-30
Cycloalkylcarbonylamino acid derivatives, which are raw material intermediates of a novel cycloalkane carboxamide derivative that selectively inhibits cathepsin K, and a production process thereof, are provided.
A cycloalkylcarbonylamino acid derivative represented by the following general formula (I), or a pharmaceutically acceptable salt thereof:
(wherein, R
1
and R
2
represent alkyl groups, alkenyl groups, alkynyl groups, aromatic hydrocarbon groups, heterocyclic groups or the like, and ring A represents a cyclic alkylidene group having 5, 6 or 7 carbon atoms).