A compound of the formula in which R 1 is oxo (=O); X is NH; Ar 1 is chosen from phenyl, C 3-6 cycloalkyl, benzoxazolyl, benzothiazolyl, benzimidazolyl, dioxanyl, tetrahydrofuranyl, oxazolyl, isoxazolyl, thiazolyl, pyrazolyl, pyrrolyl, imidazolyl, thienyl, thiadiazolyl, triazolyl, thiomorpholinyl, 1,1-Dioxo-1λ 6 -thiomorpholinyl, morpholinyl, pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, triazinyl, pyrrolidinyl, piperidinyl, piperazinyl, purinyl, quinolinyl, Dihydro-2H-quinolinyl, isoquinolinyl, quinazolinyl, indazolyl, indolyl, isoindolyl, benzofuranyl, benzopyranyl and benzodioxolyl each optionally substituted by 1-3 C 1-6 alkyl, C 1-6 alkoxy, CN, halogen, NO 2, -S 2 -C 1-3 alkyl, -CO 2 -C 1-4 alkyl, -NH(C 1-3 alkyl)-CO 2 -C 1-4 alkyl, -C -NH(C 1-3 alkyl), -C -N(C 1-3 alkyl) 2, -NH(C 1-3 alkyl), -N(C 1-3 alkyl)-C -C 1-4 alkyl, -N(C 1-3 alkyl)-S 2 -C 1-3 alkyl, morpholinyl or piperazinyl; Ar 2 is chosen from cyclohexyl, cyclohexenyl, phenyl, benzoxazolyl, benzothiazolyl, benzimidazolyl, tetrahydropyranyl, dioxanyl, tetrahydrofuranyl, oxazolyl, isoxazolyl, thiazolyl, pyrazolyl, pyrrolyl, imidazolyl, thienyl, thiadiazolyl, triazolyl, thiomorpholinyl, 1,1-Dioxo-1λ 6 -thiomorpholinyl, morpholinyl, pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, triazinyl, pyrrolidinyl, piperidinyl, piperazinyl, purinyl, quinolinyl, Dihydro-2H-quinolinyl, isoquinolinyl, quinazolinyl, indazolyl, thieno[2,3-d]pyrimidinyl, indolyl, isoindolyl, benzofuranyl, benzopyranyl, benzodioxolyl, [1,2,4]triazolo[1,5-a]pyrimidinyl and furazanyl each optionally substituted by 1-3 C 1-6 alkyl, cyclopropyl, cyclohexyl, phenyl, CN, halogen, pyrimidinyl, acetyl or oxo (=O); wherein each Ar 1 and Ar 2, or the substituents thereof are optionally partially or fully halogenated; L 1 is a bond; L 2 is a bond or -CH 2 -CH 2 - optionally substituted by halogen or C 1-3 alkyl; and wherein the stereogenic carbon indicated with an arrow is in the configuration; or a pharmaceutically acceptable salt thereof. R 1 is oxo (=O); X is NH; Ar 1 is chosen from phenyl, C 3-6 cycloalkyl, benzoxazolyl, benzothiazolyl, benzimidazolyl, dioxanyl, tetrahydrofuranyl, oxazolyl, isoxazolyl, thiazolyl, pyrazolyl, pyrrolyl, imidazolyl, thienyl, thiadiazolyl, triazolyl, thiomorpholinyl, 1,1-Dioxo-1λ 6 -thiomorpholinyl, morpholinyl, pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, triazinyl, pyrrolidinyl, piperidinyl, piperazinyl, purinyl, quinolinyl, Dihydro-2H-quinolinyl, isoquinolinyl, quinazolinyl, indazolyl, indolyl, isoindolyl, benzofuranyl, benzopyranyl and benzodioxolyl each optionally substituted by 1-3 C 1-6 alkyl, C 1-6 alkoxy, CN, halogen, NO 2, -S 2 -C 1-3 alkyl, -CO 2 -C 1-4 alkyl, -NH(C 1-3 alkyl)-CO 2 -C 1-4 alkyl, -C -NH(C 1-3 alkyl), -C -N(C 1-3 alkyl) 2, -NH(C 1-3 alkyl), -N(C 1-3 alkyl)-C -C 1-4 alkyl, -N(C 1-3 alkyl)-S 2 -C 1-3 alkyl, morpholinyl or piperazinyl; Ar 2 is chosen from cyclohexyl, cyclohexenyl, phenyl, benzoxazolyl, benzothiazolyl, benzimidazolyl, tetrahydropyranyl, dioxanyl, tetrahydrofuranyl, oxazolyl, isoxazolyl, thiazolyl, pyrazolyl, pyrrolyl, imidazolyl, thienyl, thiadiazolyl, triazolyl, thiomorpholinyl, 1,1-Dioxo-1λ 6 -thiomorpholinyl, morpholinyl, pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, triazinyl, pyrrolidinyl, piperidinyl, piperazinyl, purinyl, quinolinyl, Dihydro-2H-quinolinyl, isoquinolinyl, quinazolinyl, indazolyl, thieno[2,3-d]pyrimidinyl, indolyl, isoindolyl, benzofuranyl, benzopyranyl, benzodioxolyl, [1,2,4]triazolo[1,5-a]pyrimidinyl and furazanyl each optionally substituted by 1-3 C 1-6 alkyl, cyclopropyl, cyclohexyl, phenyl, CN, halogen, pyrimidinyl, acetyl or oxo (=O); wherein each Ar 1 and Ar 2, or the substituents thereof are optionally partially or fully halogenated; L 1 is a bond; L 2 is a bond or -CH 2 -CH 2 - optionally substituted by halogen or C 1-3 alkyl; and wherein the stereogenic carbon indicated with an arrow is in the configuration;