(2S)-2-(2-benzoylanilino)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propionic acid -Drug Synthesis Database

【结构式】

【分子编号】48285

【品名】(2S)-2-(2-benzoylanilino)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propionic acid

【CA登记号】

【分子式】C₃₄H₃₀N₂O₅

【分子量】546.62268

【元素组成】C 74.71% H 5.53% N 5.12% O 14.63%

与该中间体有关的原料药合成路线共 2 条

合成路线1 合成路线2

合成路线1

该中间体在本合成路线中的序号：(V)

Condensation of L-tyrosine methyl ester (I) with 2-benzoylcylohexanone (II) and subsequent dehydrogenation in refluxing anisole in the presence of Pd/C affords the benzophenone derivative (III), which is converted into carboxylic acid (V) by Mitsunobu reaction with heterocyclic alcohol (IV) by means of PPh3 and DEAD in THF followed by saponification of the resulting methyl ester with LiOH in THF/MeOH (1). Coupling of (V) with valinol (VI) by means of HOBt/Et3N and EDC·HCl in CH2Cl2 furnishes amide (VII), which is oxidized by means of 4-methylmorpholine (NMM) and TPAP in CH2Cl2 to furnish aldehyde (VIII). Finally, the desired oxazole is obtained by intramolecular cyclization of (VIII) by means of iodine, PPh3 and Et3N in CH2Cl2.

参考文献中间体

合成目标

【1】 N-(2-Benzoylphenyl)-L-tyrosine PPARgamma agonists. 1. Discovery of a novel serieis of potent antihyperglycemic and antihyperlipidemic agents. J Med Chem 1998, 41, 25, 5020.
【2】 Cobb, J.E.; Shearer, B.G.; Lambert, M.H. III; Milburn, M.V. (Glaxo Group Ltd.); Oxazole PPAR antagonists. WO 0117994 .

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(I)	21431	methyl (2S)-2-amino-3-(4-hydroxyphenyl)propanoate	1080-06-4	C₁₀H₁₃NO₃	详情	详情
(II)	21432	2-benzoylcyclohexanone	3580-38-9	C₁₃H₁₄O₂	详情	详情
(III)	21434	methyl (2S)-2-(2-benzoylanilino)-3-(4-hydroxyphenyl)propanoate		C₂₃H₂₁NO₄	详情	详情
(IV)	19874	2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)-1-ethanol		C₁₂H₁₃NO₂	详情	详情
(V)	48285	(2S)-2-(2-benzoylanilino)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propionic acid		C₃₄H₃₀N₂O₅	详情	详情
(VI)	48289	2-amino-3-methyl-1-butanol; DL-Valinol	473-75-6	C₅H₁₃NO	详情	详情
(VII)	48287	(2S)-2-(2-benzoylanilino)-N-[1-(hydroxymethyl)-2-methylpropyl]-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propanamide		C₃₉H₄₁N₃O₅	详情	详情
(VIII)	48288	(2S)-2-(2-benzoylanilino)-N-(1-formyl-2-methylpropyl)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propanamide		C₃₉H₃₉N₃O₅	详情	详情

合成路线2

该中间体在本合成路线中的序号：(V)

Condensation of L-tyrosine methyl ester (I) with 2-benzoylcylohexanone (II) and subsequent dehydrogenation in refluxing anisole in the presence of Pd/C affords the benzophenone derivative (III), which is converted into carboxylic acid (V) by Mitsunobu reaction with heterocyclic alcohol (IV) by means of PPh3 and DEAD in THF followed by saponification of the resulting methyl ester with LiOH in THF/MeOH (1). Coupling of (V) with acetic acid hydrazide (VI) by means of HOBt/Et3N and EDC.HCl in CH2Cl2 furnishes the diacyl hydrazide (VII), which is finally converted into the desired thiadiazole derivative by treatment with Lawesson's Reagent in refluxing toluene.

参考文献中间体

合成目标

【1】 N-(2-Benzoylphenyl)-L-tyrosine PPARgamma agonists. 1. Discovery of a novel serieis of potent antihyperglycemic and antihyperlipidemic agents. J Med Chem 1998, 41, 25, 5020.
【2】 Cobb, J.E.; Shearer, B.G.; Lambert, M.H. III; Milburn, M.V. (Glaxo Group Ltd.); Oxazole PPAR antagonists. WO 0117994 .

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(I)	21431	methyl (2S)-2-amino-3-(4-hydroxyphenyl)propanoate	1080-06-4	C₁₀H₁₃NO₃	详情	详情
(II)	21432	2-benzoylcyclohexanone	3580-38-9	C₁₃H₁₄O₂	详情	详情
(III)	21434	methyl (2S)-2-(2-benzoylanilino)-3-(4-hydroxyphenyl)propanoate		C₂₃H₂₁NO₄	详情	详情
(IV)	19874	2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)-1-ethanol		C₁₂H₁₃NO₂	详情	详情
(V)	48285	(2S)-2-(2-benzoylanilino)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propionic acid		C₃₄H₃₀N₂O₅	详情	详情
(VI)	29262	acetohydrazide	1068-57-1	C₂H₆N₂O	详情	详情
(VII)	48286	(2S)-N'-acetyl-2-(2-benzoylanilino)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]propanohydrazide		C₃₆H₃₄N₄O₅	详情	详情

Extended Information