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【结 构 式】

【分子编号】26782

【品名】Cyanuric fluoride; 2,4,6-trifluoro-1,3,5-triazine

【CA登记号】675-14-9

【 分 子 式 】C3F3N3

【 分 子 量 】135.0484296

【元素组成】C 26.68% F 42.2% N 31.11%

与该中间体有关的原料药合成路线共 3 条

合成路线1

该中间体在本合成路线中的序号:(XVI)

1-Butanesulfonyl chloride (XII) was reacted with ammonia in acetonitrile, and the resulting sulfonamide (XIII) was then converted to the N-trimethylsilyl derivative (XIV). This was coupled with acid fluoride (XVII), (obtained from Boc-valine (XV) and cyanuric fluoride (XVI)), to provide Boc-valinesulfonamide (XVIII). The Boc group of (XVIII) was then removed by acid treatment to give (XIX). Finally, coupling of this chiral intermediate with the previously obtained racemic acid (XI) furnished the title compound as a 7:3 mixture of diastereoisomers.

1 Sakaki, J.; Murata, T.; Yuumoto, Y.; Nakamura, I.; Frueh, T.; Pitterna, T.; Iwasaki, G.; Oda, K.; Yamamura, T.; Hayakawa, K.; Discovery of IRL 3461: A novel and potent endothelin antagonist with balanced ETA/ETB affinity. Bioorg Med Chem Lett 1998, 8, 16, 2241.
2 Fruh, T.; Pitterna, T.; Murata, T.; Svensson, L.D.; Yuumoto, Y.; Sakaki, J. (Novartis Japan KK); Antagonists of endothelin receptors. EP 0753004; JP 1997510720; US 5703106; WO 9526360 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XI) 26778 N-(3,5-dimethylbenzoyl)-4-(5-isoxazolyl)-N-methylphenylalanine C22H22N2O4 详情 详情
(XII) 26779 1-butanesulfonyl chloride 2386-60-9 C4H9ClO2S 详情 详情
(XIII) 26780 1-butanesulfonamide C4H11NO2S 详情 详情
(XIV) 26781 N-(trimethylsilyl)-1-butanesulfonamide C7H19NO2SSi 详情 详情
(XV) 19733 (2S)-2-[(tert-butoxycarbonyl)amino]-3-methylbutyric acid C10H19NO4 详情 详情
(XVI) 26782 Cyanuric fluoride; 2,4,6-trifluoro-1,3,5-triazine 675-14-9 C3F3N3 详情 详情
(XVII) 26783 tert-butyl (1S)-1-(fluorocarbonyl)-2-methylpropylcarbamate C10H18FNO3 详情 详情
(XVIII) 26784 tert-butyl (1S)-1-[[(butylsulfonyl)amino]carbonyl]-2-methylpropylcarbamate C14H28N2O5S 详情 详情
(XIX) 26785 N-[(2S)-2-amino-3-methylbutanoyl]-1-butanesulfonamide C9H20N2O3S 详情 详情

合成路线2

该中间体在本合成路线中的序号:(XVI)

1-Butanesulfonyl chloride (XII) was reacted with ammonia in acetonitrile, and the resulting sulfonamide (XIII) was then converted to the N-trimethylsilyl derivative (XIV). This compound was coupled with acid fluoride (XVII), (obtained from Boc-valine (XV) and cyanuric fluoride (XVI)), to provide Boc-valinesulfonamide (XVIII). The Boc group of (XVIII) was then removed by acid treatment to give (XIX). Coupling of this chiral intermediate (XIX) with racemic acid (XI) in a biphasic solvent system, with partial isomerization of acid (XI), furnished the amide (XX) as a 12:1 diastereomeric mixture. The major D,L diastereoisomer was then isolated either by preparative HPLC or by recrystallization from isopropanol.

1 Sakaki, J.; Murata, T.; Yuumoto, Y.; Nakamura, I.; Hayakawa, K.; Stereoselective synthesis of a novel and bifunctional endothelin antagonist, IRL 3630. Bioorg Med Chem Lett 1998, 8, 16, 2247.
2 Sakaki, J.; Murata, T.; Yuumoto, Y.; Nakamura, I.; Okada, T. (Novartis Japan KK); Antagonists of endothelin receptors. JP 1999512702; WO 9711960 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XI) 26778 N-(3,5-dimethylbenzoyl)-4-(5-isoxazolyl)-N-methylphenylalanine C22H22N2O4 详情 详情
(XII) 26779 1-butanesulfonyl chloride 2386-60-9 C4H9ClO2S 详情 详情
(XIII) 26780 1-butanesulfonamide C4H11NO2S 详情 详情
(XIV) 26781 N-(trimethylsilyl)-1-butanesulfonamide C7H19NO2SSi 详情 详情
(XV) 19733 (2S)-2-[(tert-butoxycarbonyl)amino]-3-methylbutyric acid C10H19NO4 详情 详情
(XVI) 26782 Cyanuric fluoride; 2,4,6-trifluoro-1,3,5-triazine 675-14-9 C3F3N3 详情 详情
(XVII) 26783 tert-butyl (1S)-1-(fluorocarbonyl)-2-methylpropylcarbamate C10H18FNO3 详情 详情
(XVIII) 26784 tert-butyl (1S)-1-[[(butylsulfonyl)amino]carbonyl]-2-methylpropylcarbamate C14H28N2O5S 详情 详情
(XIX) 26785 N-[(2S)-2-amino-3-methylbutanoyl]-1-butanesulfonamide C9H20N2O3S 详情 详情
(XX) 26786 N-[2-[((1S)-1-[[(butylsulfonyl)amino]carbonyl]-2-methylpropyl)amino]-1-[4-(5-isoxazolyl)benzyl]-2-oxoethyl]-N,3,5-trimethylbenzamide C31H40N4O6S 详情 详情

合成路线3

该中间体在本合成路线中的序号:(A)

The compound was originally isolated from Aspergillus fumigatus. The synthesis of this compound was further described. Treatment of N-phthaloyltryptophan methyl ester (I) with tert-butyl hypochlorite and triethylamine at -78 C led to the formation of the intermediate 3-chloroindolenine (II). Reaction of tributyl prenyl stannane (III) with boron trichloride generated in situ the transient boron reagent (IV), which after condensation with chloroindolenine (II) produced the 3-prenylindole (V). Subsequent removal of the phthalimide protecting group of (V) by hydrazinolysis provided aminoester (VI). Coupling of (VI) with acid fluoride (VIII), (generated from N-Boc-L-proline (VII) and cyanuric fluoride), gave rise to amide (IX). The Boc protecting group of (IX) was cleaved employing iodotrimethylsilane, and the resulting aminoester (X) was then cyclized with methanolic ammonia to produce the target diketopiperazine.

1 Schkeryantz, J.M.; et al.; Total synthesis of gypsetin, deoxybrevianamide E, brevianamide E, and tryprostatin B: Novel constructions of 2,3-disubstituted indoles. J Am Chem Soc 1999, 121, 51, 11964.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(A) 26782 Cyanuric fluoride; 2,4,6-trifluoro-1,3,5-triazine 675-14-9 C3F3N3 详情 详情
(I) 31493 methyl (2S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-(1H-indol-3-yl)propanoate C20H16N2O4 详情 详情
(II) 31494 methyl (2S)-3-(3-chloro-3H-indol-3-yl)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoate C20H15ClN2O4 详情 详情
(III) 31502 tributyl(3-methyl-2-butenyl)stannane C17H36Sn 详情 详情
(IV) 31503 dichloro(1,1-dimethyl-2-propenyl)borane C5H9BCl2 详情 详情
(V) 31504 methyl (2S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-[2-(3-methyl-2-butenyl)-1H-indol-3-yl]propanoate C25H24N2O4 详情 详情
(VI) 31505 methyl (2S)-2-amino-3-[2-(3-methyl-2-butenyl)-1H-indol-3-yl]propanoate C17H22N2O2 详情 详情
(VII) 16734 (2S)-1-(tert-butoxycarbonyl)tetrahydro-1H-pyrrole-2-carboxylic acid; N-alpha-t-BOC-L-proline; (2S)-1-(tert-butoxycarbonyl)-2-pyrrolidinecarboxylic acid C10H17NO4 详情 详情
(VIII) 31506 tert-butyl (2S)-2-(fluorocarbonyl)-1-pyrrolidinecarboxylate C10H16FNO3 详情 详情
(IX) 31507 tert-butyl (2S)-2-[[((1S)-2-methoxy-1-[[2-(3-methyl-2-butenyl)-1H-indol-3-yl]methyl]-2-oxoethyl)amino]carbonyl]-1-pyrrolidinecarboxylate C27H37N3O5 详情 详情
(X) 31508 methyl (2S)-3-[2-(3-methyl-2-butenyl)-1H-indol-3-yl]-2-[[(2S)pyrrolidinylcarbonyl]amino]propanoate C22H29N3O3 详情 详情
Extended Information