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【结 构 式】

【分子编号】53594

【品名】2-(2,3-dihydro-1H-inden-1-yl)acrylic acid

【CA登记号】n/a

【 分 子 式 】C12H12O2

【 分 子 量 】188.22608

【元素组成】C 76.57% H 6.43% O 17%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(VII)

The reduction of 1-indanone (I) with NaBH4 in methanol gives 1-indanol (II), which is brominated with Tms-Br in chloroform to yield 1-bromoindane (III) (1). The condensation of (III) with triethyl phosphonoacetate (IV) and NaH in DMF affords 2-(diethoxyphosphoryl)-2-(1-indanyl)acetic acid ethyl ester (V), which is treated with paraformaldehyde and K2CO3 in refluxing THF to provide 2-(1-indanyl)acrylic acid ethyl ester (VI). The hydrolysis of (VI) with NaOH in acetone/water gives the corresponding acrylic acid (VII), which is condensed with thioacetic acid (VIII) in refluxing chloroform to yield 3-(acetylsulfanyl)-2-(1-indanyl)propionic acid ethyl ester (IX) as a mixture of the two (R,R)+(S,S) and (R,S)+(S,R) racemates. These two racemates are easily separated by HPLC affording the desired (R,R)+(S,S)-(X) racemate. The condensation of (X) with L-tryptophan methyl ester (XI) by means of EDC and HOBT in THF/chloroform to provide a diastereomeric mixture (R,R,S)+(S,S,S) of compounds that is separated by HPLC to provide the desired (R,R,S) diastereomer (XII). Finally, this compound is hydrolyzed with NaOH in methanol/water to furnish the target tryptophan derivative.

1 Inguimbert, N.; Roques, B.P.; Meudal, H.; Teffot, F.; Poras, H.; Fournié-Zaluski, M.-C.; Coric, P.; Toward an optimal joint recognition of the S1' subsites of endothelin converting enzyme-1 (ECE-1), angiotensin converting enzyme (ACE), and neutral endopeptidase (NEP). J Med Chem 2002, 45, 7, 1477.
2 Roques, B.P.; Renard, P.; Scalbert, E.; Bennejean, C.; Fournie-Lazuski, M.-C.; Inguimbert, N.; Poras, H. (ADIR et Cie.; INSERM (Institut National de la Sante et de la Recherche Medicale)); Amino acid derivs. and use thereof as NEP, ACE and ECE inhibitors. FR 2805259; WO 0160822 .
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) 23857 1-indanone 83-33-0 C9H8O 详情 详情
(II) 53590 1-Hydroxyhydrindene; 1-Hydroxyindan; 1-Indanol 6351-10-6 C9H10O 详情 详情
(III) 53591 1-bromoindane n/a C9H9Br 详情 详情
(IV) 10019 Ethyl 2-(diethoxyphosphoryl)acetate; Triethyl phosphonoacetate 867-13-0 C8H17O5P 详情 详情
(V) 53592 ethyl 2-(diethoxyphosphoryl)-2-(2,3-dihydro-1H-inden-1-yl)acetate n/a C17H25O5P 详情 详情
(VI) 53593 ethyl 2-(2,3-dihydro-1H-inden-1-yl)acrylate n/a C14H16O2 详情 详情
(VII) 53594 2-(2,3-dihydro-1H-inden-1-yl)acrylic acid n/a C12H12O2 详情 详情
(VIII) 12893 Ethanethioic S-acid C2H4OS 详情 详情
(IX) 53595 3-(acetylsulfanyl)-2-(2,3-dihydro-1H-inden-1-yl)propanoic acid n/a C14H16O3S 详情 详情
(X) 53596 (2R)-3-(acetylsulfanyl)-2-[(1R)-2,3-dihydro-1H-inden-1-yl]propanoic acid n/a C14H16O3S 详情 详情
(XI) 30387 2-amino-6-isopropyl-4-pyrimidinol C7H11N3O 详情 详情
(XII) 53597 methyl (2S)-2-({(2R)-3-(acetylsulfanyl)-2-[(1R)-2,3-dihydro-1H-inden-1-yl]propanoyl}amino)-3-(1H-indol-3-yl)propanoate n/a C26H28N2O4S 详情 详情
Extended Information