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. 2004 Mar 29;141(8):1313–1320. doi: 10.1038/sj.bjp.0705768

Table 1.

IC50 (nM) values of diverse TRPV1 antagonists

14 (Jerman et al., 2000) Ruthenium Red (ammoniated ruthenium oxychloride)
912 (Rigoni et al., 2003)a Capsazepine (N-[2-(4-chlorophenyl)ethyl]-1,3,4,5-tetrahydro-7,8-dihydroxy-2H-2-benzazepine-2-carbothioamide)
0.071 (Rigoni et al., 2003)a Iodo-resiniferatoxin (6,7-deepoxy-6,7-didehydro-5-deoxy-21-dephenyl-21-(phenylmethyl)-daphnetoxin,20-(4-hydroxy-5-iodo-3-methoxybenzeneacetate)
638.6 (Appendino et al., 2003) 6-iodo-nordihydrocapsaicin (6-iodo-nordihy 8-methyl-N-vanillyl-trans-6-nonenamide)
7.5 (Gunthorpe et al., 2003) SB 366791 (N-(3-methoxyphenyl)-4-chlorocinnamide)
100 (Himmel et al., 2002) L-R4W2 (L-enantiomers of the arginine-rich hexapeptide)
4.8–58 (Sun et al., 2003)b 4-(2-pyridyl)piperazine-1-carboxamides
7.8 (Lee et al., 2003)c N-[2-(3,4-dimethylbenzyl)-3-pivaloyloxypropyl]-N′-[3-fluoro-4-(methylsulphonylamino)benzyl] thiourea
9.2 (Wang et al., 2002)c JYL1421 ([N-(4-tert-butylbenzyl)-N′-[3-fluoro-4-(methylsulphonylamino)benzyl]thiourea])
6–35 (Valenzano et al., 2003) BCTC (N-(4-tertiarybutylphenyl)-4-(3-cholorphyridin-2-yl)tetrahydropyrazine -1(2H)-carbox-amide)

NB: IC50 values are referred to the inhibition of capsaicin-induced calcium uptake in: endogenous TRPV1 in rat DRG neurons.

a

Human TRPV1 HEK293 cell line.

b

Rat TRPV1 HEK293 cell line.

c

rVR1 CHO cells.