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【结 构 式】

【分子编号】32410

【品名】methyl 3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxylate

【CA登记号】

【 分 子 式 】C14H12N6O3

【 分 子 量 】312.28792

【元素组成】C 53.85% H 3.87% N 26.91% O 15.37%

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:(V)

The condensation of 2-(bromomethyl)acrylic acid methyl ester (I) with 1H-tetrazole (II) by means of K2CO3 in DMF gives 2-(1-tetrazolylmethyl)acrylic acid methyl ester (III), which is cyclized with 3-cyanobenzaldehyde oxime (IV) by means of NaOCl yielding the oxazoline carboxylic ester (V). The hydrolysis of (V) with LiOH in THF affords the free carboxylic acid (VI), which is condensed with 2-(6-aminopyridin-3-yl)-N-tert-butybenzenesulfonamide (VII) by means of SOCl2 and triethylamine giving the carboxamide (VIII). Finally, this compound is treated with HCl and then with ammonium acetate to eliminate the tert-butyl protecting group and to hydrolyze the cyano group to the target amidino compound.

1 Alexander, R.S.; Wesler, R.R.; Ellis, C.D.; Quan, M.L.; Liauw, A.Y.; Wong, P.C.; Lam, G.; Knabb, R.M.; Wright, M.R.; Design and synthesis of isoxazoline derivatives as factor Xa inhibitors. 2(1). J Med Chem 1999, 42, 15, 2760.
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) 32407 methyl 2-(bromomethyl)acrylate C5H7BrO2 详情 详情
(II) 32408 1H-1,2,3,4-tetraazole; Tetrazole 288-94-8 CH2N4 详情 详情
(III) 32409 methyl 2-(1H-1,2,3,4-tetraazol-1-ylmethyl)acrylate C6H8N4O2 详情 详情
(IV) 23357 3-[(hydroxyimino)methyl]benzonitrile C8H6N2O 详情 详情
(V) 32410 methyl 3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxylate C14H12N6O3 详情 详情
(VI) 32411 3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxylic acid C13H10N6O3 详情 详情
(VII) 32412 2-(6-amino-3-pyridinyl)-N-(tert-butyl)benzenesulfonamide C15H19N3O2S 详情 详情
(VIII) 32413 N-(5-[2-[(tert-butylamino)sulfonyl]phenyl]-2-pyridinyl)-3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxamide C28H27N9O4S 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

The condensation of 2-(bromomethyl)acrylic acid methyl ester (I) with 1H-tetrazole (II) by means of K2CO3 in DMF gives 2-(1-tetrazolylmethyl)acrylic acid methyl ester (III), which is cyclized with 3-cyanobenzaldehyde oxime (IV) by means of NaOCl yielding the oxazoline carboxylic ester (V). The hydrolysis of (V) with LiOH in THF affords the free carboxylic acid (VI), which is condensed with 4'-amino-N-tert-butylbiphenyl-2-sulfonamide (VII) by means of SOCl2 and triethylamine giving the carboxamide (VIII). Finally, this compound is treated with HCl and then with ammonium acetate to eliminate the tert-butyl protecting group and to hydrolyze the cyano group to the target amidino compound.

1 Alexander, R.S.; Wesler, R.R.; Ellis, C.D.; Quan, M.L.; Liauw, A.Y.; Wong, P.C.; Lam, G.; Knabb, R.M.; Wright, M.R.; Design and synthesis of isoxazoline derivatives as factor Xa inhibitors. 2(1). J Med Chem 1999, 42, 15, 2760.
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) 32407 methyl 2-(bromomethyl)acrylate C5H7BrO2 详情 详情
(II) 32408 1H-1,2,3,4-tetraazole; Tetrazole 288-94-8 CH2N4 详情 详情
(III) 32409 methyl 2-(1H-1,2,3,4-tetraazol-1-ylmethyl)acrylate C6H8N4O2 详情 详情
(IV) 23357 3-[(hydroxyimino)methyl]benzonitrile C8H6N2O 详情 详情
(V) 32410 methyl 3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxylate C14H12N6O3 详情 详情
(VI) 32411 3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxylic acid C13H10N6O3 详情 详情
(VII) 23363 4'-amino-N-(tert-butyl)[1,1'-biphenyl]-2-sulfonamide C16H20N2O2S 详情 详情
(VIII) 32414 N-[2'-[(tert-butylamino)sulfonyl][1,1'-biphenyl]-4-yl]-3-(3-cyanophenyl)-5-(1H-1,2,3,4-tetraazol-1-ylmethyl)-4,5-dihydro-5-isoxazolecarboxamide C29H28N8O4S 详情 详情
Extended Information