Abstract:
:Previously, we reported the thiourea antagonists 2a and 2b as potent and high affinity TRPV1 antagonists. For further optimization of the lead compounds, a series of their amide and alpha-substituted amide surrogates were investigated and novel chiral N-(2-benzyl-3-pivaloyloxypropyl) 2-[4-(methylsulfonylamino)phenyl]propionamide analogues were characterized as potent and stereospecific rTRPV1 antagonists. In particular, compounds 72 and 73 displayed high binding affinities, with K i values of 4.12 and 1.83 nM and potent antagonism with K i values of 0.58 and 5.2 nM, respectively, in rTRPV1/CHO cells. These values are comparable or more potent than those of 5-iodoRTX under the same assay conditions. A distinctive binding model that includes two hydrophobic pockets is proposed for this series of compounds based on docking studies of 57 and 72 with a homology model of the TM3/4 region of TRPV1.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Ryu H,Jin MK,Kim SY,Choi HK,Kang SU,Kang DW,Lee J,Pearce LV,Pavlyukovets VA,Morgan MA,Tran R,Toth A,Lundberg DJ,Blumberg PMdoi
10.1021/jm701049psubject
Has Abstractpub_date
2008-01-10 00:00:00pages
57-67issue
1eissn
0022-2623issn
1520-4804journal_volume
51pub_type
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