(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-1-[2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-5-(diaminomethylideneamino)-2-[[(2S)-1-[(2S)-5-(diaminomethylideneamino)-2-[[(2S)-5-oxopyrrolidine-2-carbonyl]amino]pentanoyl]pyrrolidine-2-carbonyl]amino]pentanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-3-(1H-imidazol-5-yl)propanoyl]amino]hexanoyl]amino]acetyl]pyrrolidine-2-carbonyl]amino]-4-methylsulfanylbutanoyl]pyrrolidine-2-carbonyl]amino]-3-phenylpropanoic acid

N-[(3S)-1-(cyclobutylamino)-5-(3,3-difluoropiperidin-1-yl)-1-oxopentan-3-yl]-1-cyclopentyl-5-[2-(trifluoromethyl)phenyl]pyrazole-3-carboxamide

3-{5-[(5- chloropyridin-2- yl)methyl]-1,3,4- oxadiazol-2-yl}-5- (2,6- dimethoxyphenyl)- 6-(ethoxymethyl) pyridine-2,4-diol

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-oxo-5-piperidin-1-yl-1-(1,3-thiazol-2-ylamino)pentan-3-yl]pyrazole-3-carboxamide

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-[methyl(1,3-thiazol-2-yl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-5-cyclohexyl-1-oxopentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-5-cyclohexyl-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-propylpyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-5-cyclohexyl-1-oxopentan-3-yl]-1-cyclohexyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide

cyclobutyl (3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-piperidin-1-ylpentanoate

N-[(3S)-5-cyclohexyl-1-(2-hydroxybutylamino)-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

N-[(3S)-5-cyclohexyl-1-[[(2R)-2-hydroxybutyl]amino]-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-5-cyclohexyl-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

1-cyclopentyl-N-[(3S)-1-[(3,3-difluorocyclobutyl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide

N-[(3S)-5-(azepan-1-yl)-1-(cyclobutylamino)-1-oxopentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;hydrochloride

N-[(3S)-5-cyclohexyl-1-oxo-1-(2-oxobutylamino)pentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

methyl 2-[[(2S)-2-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]-4-phenylbutanoyl]-methylamino]acetate

methyl 2-[[(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]pentanoyl]amino]acetate

N-[(3S)-5-cyclohexyl-1-(2-methoxyethylamino)-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

N-[(3S)-1-[cyclobutyl(methyl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide

(S)-N-(1-(1H-tetrazol-5-ylamino)-1-oxo-5-(piperidin-1-yl)pentan-3-yl)-1-cyclopentyl-5-(2,6-dimethoxyphenyl)-1H-pyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-5-cyclohexyl-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(4-fluorophenyl)pyrazole-3-carboxamide

methyl 2-[[(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]pentanoyl]-methylamino]acetate

N-[(3S)-1-(cyclobutylamino)-5-(2,6-dimethylpiperidin-1-yl)-1-oxopentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;hydrochloride

1-cyclopentyl-N-[(3S)-5-(3,3-difluoropiperidin-1-yl)-1-oxo-1-(2H-tetrazol-5-ylamino)pentan-3-yl]-5-[2-(trifluoromethyl)phenyl]pyrazole-3-carboxamide

(S)-1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-(4-(piperidin-1-yl)-1-(4H-1,2,4-triazol-3-yl)butan-2-yl)-1H-pyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-1-oxo-5-piperidin-1-ylpentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;hydrochloride

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-(1,3-oxazol-2-ylmethylamino)-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

N-[(3S)-1-(cyclobutylamino)-5-morpholin-4-yl-1-oxopentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;hydrochloride

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-[(1-methylcyclobutyl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

(S)-N-(1-((1H-tetrazol-5-yl)methylamino)-1-oxo-5-(piperidin-1-yl)pentan-3-yl)-1-cyclopentyl-5-(2,6-dimethoxyphenyl)-1H-pyrazole-3-carboxamide

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(2S)-1-(1,3,4-oxadiazol-2-yl)-4-piperidin-1-ylbutan-2-yl]pyrazole-3-carboxamide

methyl 2-[[(2S)-2-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]-4-phenylbutanoyl]amino]acetate

(3S)-5-cyclohexyl-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]pentanoic acid

N-[(3S)-1-(cyclobutylamino)-1-oxo-5-pyrrolidin-1-ylpentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;hydrochloride

N-[(3S)-1-(cyclobutylamino)-1-oxo-5-phenylpentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

(3S)-5-cyclohexyl-3-[[1-cyclohexyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]pentanoic acid

(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-propylpyrazole-3-carbonyl]amino]pentanoic acid

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-[(3-methyloxetan-3-yl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

(3S)-5-(azepan-1-yl)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]pentanoic acid;hydrochloride

N-[(3S)-5-(7-azabicyclo[2.2.1]heptan-7-yl)-1-(cyclobutylamino)-1-oxopentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;hydrochloride

(3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-piperidin-1-ylpentanoic acid;hydrochloride

(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]pentanoic acid

(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-(4-fluorophenyl)pyrazole-3-carbonyl]amino]pentanoic acid

N-[(3S)-1-amino-5-cyclohexyl-1-oxopentan-3-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

(S)-N-(1-(2-(1H-tetrazol-5-yl)ethylamino)-1-oxo-5-(piperidin-1-yl)pentan-3-yl)-1-cyclopentyl-5-(2,6-dimethoxyphenyl)-1H-pyrazole-3-carboxamide

5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)-N-[(2S)-1-oxo-1-(2-oxobutylamino)-4-phenylbutan-2-yl]pyrazole-3-carboxamide

2-[[(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]pentanoyl]amino]acetic acid

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-(2-methoxyethylamino)-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

(3S)-5-cyclohexyl-3-[[5-(2,6-dimethoxyphenyl)-1-methylpyrazole-3-carbonyl]amino]pentanoic acid

N-[(2S)-1-(cyclobutylamino)-1-oxo-4-phenylbutan-2-yl]-5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carboxamide

(3S)-5-cyclohexyl-3-[[1-(cyclohexylmethyl)-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]pentanoic acid

5-(2,6-dimethoxyphenyl)-N-[(2S)-1-(2-methoxyethylamino)-1-oxo-4-phenylbutan-2-yl]-1-(2-methylpropyl)pyrazole-3-carboxamide

(2S)-2-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]-4-phenylbutanoic acid

(3S)-3-[[1-cycloheptyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-cyclohexylpentanoic acid

5-(2,6-dimethoxyphenyl)-N-[(2S)-1-(2-hydroxybutylamino)-1-oxo-4-phenylbutan-2-yl]-1-(2-methylpropyl)pyrazole-3-carboxamide

(3S)-3-[[5-(2,6-dimethoxyphenyl)-1-(2-methylpropyl)pyrazole-3-carbonyl]amino]-5-phenylpentanoic acid

(3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-(diethylamino)pentanoic acid;hydrochloride

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-(2-oxa-6-azaspiro[3.3]heptan-6-yl)-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-[(1-methylcyclopropyl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

(3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-pyrrolidin-1-ylpentanoic acid;hydrochloride

(3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-piperazin-1-ylpentanoic acid;hydrochloride

(3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-(2,6-dimethylpiperidin-1-yl)pentanoic acid;hydrochloride

N-[(3S)-1-(cyclobutylamino)-5-(4-methylpiperazin-1-yl)-1-oxopentan-3-yl]-1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carboxamide;dihydrochloride

(3S)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]-5-morpholin-4-ylpentanoic acid;hydrochloride

1-cyclopentyl-5-(2,6-dimethoxyphenyl)-N-[(3S)-1-[2-methoxyethyl(methyl)amino]-1-oxo-5-piperidin-1-ylpentan-3-yl]pyrazole-3-carboxamide

(3S)-5-(7-azabicyclo[2.2.1]heptan-7-yl)-3-[[1-cyclopentyl-5-(2,6-dimethoxyphenyl)pyrazole-3-carbonyl]amino]pentanoic acid;hydrochloride

4-chloro-3-nitro-benzoic acid [4-keto-6-[[(4-methylpyrimidin-2-yl)thio]methyl]pyran-3-yl] ester

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfonylmethyl]-4-oxopyran-3-yl] 4-chloro-3-nitrobenzoate

[6-[(4-chlorophenyl)sulfanylmethyl]-4-oxopyran-3-yl] 4-chloro-3-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-methyl-3-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-chloro-3-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-cyanobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-methyl-3-nitrobenzoate

[6-[(4-methoxyphenyl)sulfanylmethyl]-4-oxopyran-3-yl] 4-chloro-3-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-cyanobenzoate

[4-oxo-6-(phenylsulfanylmethyl)pyran-3-yl] 4-chloro-3-nitrobenzoate

[6-[(4-methylphenyl)sulfanylmethyl]-4-oxopyran-3-yl] 4-chloro-3-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-bromobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-(trifluoromethyl)benzoate

[4-oxo-6-[[4-(trifluoromethoxy)phenyl]sulfanylmethyl]pyran-3-yl] 4-chloro-3-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-(trifluoromethyl)benzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-pyrrolidin-1-ylsulfonylbenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 2-chloro-5-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-chlorobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 5-chloro-2-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2-chlorobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 2-methyl-3-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2-chloro-5-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 3-nitrobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3-cyanobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-(dimethylsulfamoyl)benzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-methylbenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-tert-butylbenzoate

5-hydroxy-2-(pyrimidin-2-ylsulfanylmethyl)pyran-4-one

N-[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl]benzamide

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3-chlorobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-chlorobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-butoxybenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] furan-2-carboxylate

N-[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl]-4-nitrobenzamide

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] acetate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2,2-dimethylpropanoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] benzoate

2-[(4-fluorophenyl)sulfanylmethyl]-5-hydroxypyran-4-one

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 1,3-oxazole-5-carboxylate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-fluorobenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3-methylbenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4,5-dimethoxy-2-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 5-chloro-2-nitrobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-methoxybenzoate

5-hydroxy-2-(phenylsulfanylmethyl)pyran-4-one

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-fluorobenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-methylbenzoate

2-[(4,6-dimethylpyrimidin-2-yl)sulfanylmethyl]-5-hydroxypyran-4-one

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2-methylpropanoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-pyrrolidin-1-ylsulfonylbenzoate

[6-[(4,6-dimethylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-nitrobenzenesulfonate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-morpholin-4-ylsulfonylbenzoate

[6-[(4,6-dimethylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] benzenesulfonate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-(trifluoromethoxy)benzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2-methylbenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-methoxybenzoate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 5-nitrofuran-2-carboxylate

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] thiophene-3-carboxylate

5-[(4-chloro-3-nitrophenyl)methoxy]-2-[(4-methylpyrimidin-2-yl)sulfanylmethyl]pyran-4-one

5-hydroxy-2-[(4-methylpyrimidin-2-yl)sulfanylmethyl]pyran-4-one

[6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3-methoxybenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-piperidin-1-ylsulfonylbenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-phenylbenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-(diethylsulfamoyl)benzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-ethoxybenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] benzoate

2-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-5-phenylmethoxypyran-4-one

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 4-propan-2-yloxybenzoate

[4-oxo-6-(pyrimidin-2-ylsulfanylmethyl)pyran-3-yl] 3,4-dimethylbenzoate