【结 构 式】 |
【分子编号】53390 【品名】3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoyl chloride 【CA登记号】n/a |
【 分 子 式 】C11H8ClNO3 【 分 子 量 】237.64216 【元素组成】C 55.6% H 3.39% Cl 14.92% N 5.89% O 20.2% |
合成路线1
该中间体在本合成路线中的序号:(II)Acylation of phenethylamine (III) with acid chloride (II), prepared from phthalimidopropionic acid (I) and SOCl2, gave amide (IV). Subsequent Bischler-Napieralski cyclization of amide (IV) in the presence of POCl3 and P2O5 produced the corresponding dihydroisoquinoline, which was isolated as the hydrochloride salt (V). Catalytic hydrogenation of (V) using PtO2 afforded the tetrahydroisoquinoline (VI). After protection of (VI) as the N-Boc derivative (VII), the primary amine (VIII) was liberated by phthaloyl group hydrazinolysis. Coupling of amine (VIII) with nicotinic acid (IX) employing EDC and HOBt yielded the nicotinamide compound (X). Subsequent acidic cleavage of the Boc protecting group of (X) provided amine (XI), which was finally acylated with 4-butylbenzenesulfonyl chloride (XII) in the presence of resin-bound piperidine to furnish the target sulfonamide.
【1】 Barn, D.R.; et al.; Parallel synthesis and biological activity of a new class of high affinity and selective delta-opioid ligand. Bioorg Med Chem 2001, 9, 10, 2609. |
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) | 53389 | 3-Phthalimidopropionic acid; Phthalyl-beta-alanine | 3339-73-9 | C11H9NO4 | 详情 | 详情 |
(II) | 53390 | 3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoyl chloride | n/a | C11H8ClNO3 | 详情 | 详情 |
(III) | 18333 | Phenethylamine; 2-Phenyl-1-ethanamine | 64-04-0 | C8H11N | 详情 | 详情 |
(IV) | 53391 | 3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-phenethylpropanamide | n/a | C19H18N2O3 | 详情 | 详情 |
(V) | 53392 | 2-[2-(3,4-dihydro-1-isoquinolinyl)ethyl]-1H-isoindole-1,3(2H)-dione | n/a | C19H16N2O2 | 详情 | 详情 |
(VI) | 53393 | 2-[2-(1,2,3,4-tetrahydro-1-isoquinolinyl)ethyl]-1H-isoindole-1,3(2H)-dione | n/a | C19H18N2O2 | 详情 | 详情 |
(VII) | 53394 | tert-butyl 1-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethyl]-3,4-dihydro-2(1H)-isoquinolinecarboxylate | n/a | C24H26N2O4 | 详情 | 详情 |
(VIII) | 53395 | tert-butyl 1-(2-aminoethyl)-3,4-dihydro-2(1H)-isoquinolinecarboxylate | n/a | C16H24N2O2 | 详情 | 详情 |
(IX) | 10752 | Nicotinic acid; Niacin | 59-67-6 | C6H5NO2 | 详情 | 详情 |
(X) | 53396 | tert-butyl 1-{2-[(3-pyridinylcarbonyl)amino]ethyl}-3,4-dihydro-2(1H)-isoquinolinecarboxylate | n/a | C22H27N3O3 | 详情 | 详情 |
(XI) | 53397 | N-[2-(1,2,3,4-tetrahydro-1-isoquinolinyl)ethyl]nicotinamide | n/a | C17H19N3O | 详情 | 详情 |
(XII) | 53398 | 4-n-Butylbenzenesulphonyl chloride | 54997-92-1 | C10H13ClO2S | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(I)3-Phthalimidopropionyl chloride (I) is condensed with n-nonylamine to produce the corresponding amide (II). Subsequent hydrazinolysis of phthalimide (II) furnishes the aminopropanamide (III), which is condensed with D-pantonolactone (IV) to yield the desired compound.
【1】 Clifton, G.; Bryant, S.R.; Skinner, C.G.; N1-(Substituted) pantothenamides, antimetabolites of pantothenic acid. Arch Biochem Biophys 1970, 137, 2, 523. |
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) | 53390 | 3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoyl chloride | n/a | C11H8ClNO3 | 详情 | 详情 |
(II) | 64801 | 3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-nonylpropanamide | C20H28N2O3 | 详情 | 详情 | |
(III) | 64802 | 3-amino-N-nonylpropanamide | C12H26N2O | 详情 | 详情 | |
(IV) | 51427 | D-Pantolactone; R(-)-2-Hydroxy-3,3-dimethyl-gamma-butyrolactone | 599-04-2 | C6H10O3 | 详情 | 详情 |