7-Fluoroindazoles as Potent and Selective Inhibitors of Factor Xa
作者:Yu-Kai Lee、Daniel J. Parks、Tianbao Lu、Tho V. Thieu、Thomas Markotan、Wenxi Pan、David F. McComsey、Karen L. Milkiewicz、Carl S. Crysler、Nisha Ninan、Marta C. Abad、Edward C. Giardino、Bruce E. Maryanoff、Bruce P. Damiano、Mark R. Player
DOI:10.1021/jm701217r
日期:2008.1.1
We have developed a novel series of potent and selectivefactorXainhibitors that employ a key 7-fluoroindazolyl moiety. The 7-fluoro group on the indazole scaffold replaces the carbonyl group of an amide that is found in previously reported factorXainhibitors. The structure of a factorXa cocrystal containing 7-fluoroindazole 51a showed the 7-fluoro atom hydrogen-bonding with the N-H of Gly216
The present invention relates to new biocompatible polymer derivatives including peptide spacers of formula (1) and their methods of preparation. The present invention also relates to the conjugates formed by covalent or non-covalent bonding and their methods of preparation. These biocompatible polymers with peptide spacers providing regions of hydrophobicity and positive charge can enhance their interaction with cell membrane to increase the cell trafficking, endosomal disruption, the circulation half-life in blood, and the stability of conjugated therapeutic drug.
A compound of Formula 1:
(wherein A is optionally substituted lower alkylene (substituent: mono- or di-lower alkyl, lower alkylidene, or lower alkylene having two or more carbons); Z
+
is either of the groups shown below:
(wherein R
1
and R
2
are each independently hydrogen, optionally substituted amino lower alkyl, optionally substituted aminocycloalkyl, optionally substituted cyclic amino, or optionally substituted cyclic amino lower alkyl; R
9
is hydrogen or lower alkyl, or R
1
and R
9
taken together with an adjacent N atom may form optionally substituted cyclic amino; R
3
is hydrogen or amino; X is N or CR
4
(R
4
is hydrogen or optionally substituted lower alkyl)), a pharmaceutically acceptable salt or a solvate thereof.