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【结 构 式】

【分子编号】12928

【品名】2-Amino-N-[3-(2-chlorobenzoyl)-5-(4-isobutylphenethyl)-2-thienyl]propanamide

【CA登记号】

【 分 子 式 】C26H29ClN2O2S

【 分 子 量 】469.04724

【元素组成】C 66.58% H 6.23% Cl 7.56% N 5.97% O 6.82% S 6.84%

与该中间体有关的原料药合成路线共 2 条

合成路线1

该中间体在本合成路线中的序号:(VI)

Reaction of 2-(2-chlorobenzoyl)acetonitrile (I) with 4-(4-isobutylphenyl)butyraldehyde (II) and sulfur in DMF/NEt3 gives 2-amino-3-(2-chlorobenzoyl)-5-[2-(4-isobutylphenyl)ethyl]thiophene (III), which is acylated with 2-chloropropionyl chloride (IV) in chloroform to give 2-(2-chloropropionamido)-3-(2-chlorobenzoyl)-5-[2-(4-isobutylphenyl) ethyl]thiophene (V). Compound (V) is treated with sodium iodide in THF followed by liquid ammonia to give 2-(2-aminopropionamido)-3-(2-chlorobenzoyl)-5-[2-(4-isobutylphenyl) ethyl]thiophene (VI), which is cyclized in isopropanol and acetic acid to give 5-(2-chlorophenyl)-5-[2-(4-isobutylphenyl)ethyl]-3-methyl-2,3-dihydro-1H-thieno[2,3-e]-1,4-diazepin-2-one (VII). Compound (VII) gives 5-(2-chlorophenyl)-7-[2-(4-isobutylphenyl)ethyl]-3-methyl-2,3-dihydro-1H-thieno[2,3-e]-1,4-diazepin-2-thione (VIII) upon treatment with Lawesson's reagent. Finally, (VIII) is cyclized with hydrazine hydrate and ethyl orthoformiate.

1 Tahara, T.; Moriwaki, M.; Abe, M.; Yuasa, S. (Welfide Corporation); PAF-antagonistic thienotriazolodiazepine compounds and pharmaceutical uses thereof. EP 0268242; JP 1989156982; US 4820703 .
2 Castaner, J.; Prous, J.; Mealy, N.; Y-24180. Drugs Fut 1993, 18, 11, 1016.
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) 12923 3-(2-Chlorophenyl)-3-oxopropanenitrile 40018-25-5 C9H6ClNO 详情 详情
(II) 12924 4-(4-Isobutylphenyl)butanal C14H20O 详情 详情
(III) 12925 [2-Amino-5-(4-isobutylphenethyl)-3-thienyl](2-chlorophenyl)methanone C23H24ClNOS 详情 详情
(IV) 12926 2-Chloropropanoyl chloride; 2-Chloropropionyl chloride 7623-09-8 C3H4Cl2O 详情 详情
(V) 12927 2-Chloro-N-[3-(2-chlorobenzoyl)-5-(4-isobutylphenethyl)-2-thienyl]propanamide C26H27Cl2NO2S 详情 详情
(VI) 12928 2-Amino-N-[3-(2-chlorobenzoyl)-5-(4-isobutylphenethyl)-2-thienyl]propanamide C26H29ClN2O2S 详情 详情
(VII) 12929 5-(2-Chlorophenyl)-7-(4-isobutylphenethyl)-3-methyl-1,3-dihydro-2H-thieno[2,3-e][1,4]diazepin-2-one C26H27ClN2OS 详情 详情
(VIII) 12930 5-(2-Chlorophenyl)-7-(4-isobutylphenethyl)-3-methyl-1,3-dihydro-2H-thieno[2,3-e][1,4]diazepine-2-thione C26H27ClN2S2 详情 详情

合成路线2

该中间体在本合成路线中的序号:(VI)

A new synthesis of Y-24180 has been published: The reaction of 2-(2-chlorobenzoyl)acetonitrile (I) with 4-(4-isobutylphenyl)butyraldehyde (II) and sulfur by means of triethylamine in DMF gives the benzoylthiophene (III), which is condensed with 2-phthalimidopropionyl chloride (IV) yielding the propionamidothiophene (V). Elimination of the phthalimido group of (V) first with hydrazine and then with HCl affords the alanylaminothiophene (VI), which is cyclized by means of acetic acid giving 5-(2-chlorophenyl)-7-[2-(4-isobutylphenyl)ethyl]-3-methyl-2,3-dihydro-1 H-thieno[3,2-f][1,4]diazepin-2-one (VII). The reaction of (VII) with P2S5 yields the corresponding thioketone (VIII), which by reaction with hydrazine is converted into the hydrazone (IX). Finally, this compound is cyclized with triethyl orthoacetate (X).

1 Kawakami, Y.; Moriwaki, M.; Kitani, H.; Kagoshima, M.; Abe, M.; Tahara, T.; Terasawa, M.; Yuasa, S.; Structural optimization of 4-(2-chlorophenyl)-9-methyl-6H-thieno[3,2-f][1, 2,4]triazolo[4,3-a][1,4]diazepines as antagonists for platelet activating factor: Pharmacological contribution of substituents at the 2- and 6-positions of a condensed ring system. Eur J Med Chem 1996, 31, 9, 683.
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) 12923 3-(2-Chlorophenyl)-3-oxopropanenitrile 40018-25-5 C9H6ClNO 详情 详情
(II) 12924 4-(4-Isobutylphenyl)butanal C14H20O 详情 详情
(III) 12925 [2-Amino-5-(4-isobutylphenethyl)-3-thienyl](2-chlorophenyl)methanone C23H24ClNOS 详情 详情
(IV) 12934 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoyl chloride C11H8ClNO3 详情 详情
(V) 12935 N-[3-(2-Chlorobenzoyl)-5-(4-isobutylphenethyl)-2-thienyl]-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanamide C34H31ClN2O4S 详情 详情
(VI) 12928 2-Amino-N-[3-(2-chlorobenzoyl)-5-(4-isobutylphenethyl)-2-thienyl]propanamide C26H29ClN2O2S 详情 详情
(VII) 12929 5-(2-Chlorophenyl)-7-(4-isobutylphenethyl)-3-methyl-1,3-dihydro-2H-thieno[2,3-e][1,4]diazepin-2-one C26H27ClN2OS 详情 详情
(VIII) 12930 5-(2-Chlorophenyl)-7-(4-isobutylphenethyl)-3-methyl-1,3-dihydro-2H-thieno[2,3-e][1,4]diazepine-2-thione C26H27ClN2S2 详情 详情
(IX) 12939 5-(2-Chlorophenyl)-7-(4-isobutylphenethyl)-3-methyl-1,3-dihydro-2H-thieno[2,3-e][1,4]diazepin-2-one hydrazone C26H29ClN4S 详情 详情
(X) 12940 1,1-Diethoxyethyl ethyl ether; 1,1,1-Triethoxyethane; Triethyl orthoacetate 78-39-7 C8H18O3 详情 详情
Extended Information