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【结 构 式】

【分子编号】32312

【品名】N-[(2S,3S,6R,9S)-2-iodo-5-oxo-4-oxatricyclo[4.2.1.0(3,7)]non-9-yl]-4-methylbenzenesulfonamide

【CA登记号】

【 分 子 式 】C15H16INO4S

【 分 子 量 】433.26685

【元素组成】C 41.58% H 3.72% I 29.29% N 3.23% O 14.77% S 7.4%

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 Diels-Alder condensation of the fumaric acid (S)-methyl lactate ester (I) with cyclopentadiene (II) gives the norbornene derivative (III), which is submitted to saponification with LiOH and iodolactonization with KI and I2 yielding the iodolactone (IV). The reaction of (IV) with SOCl2 and then with ammonia affords the amide (V). The Hofmann-type rearrangement of (V) by means of hydroxytosyloxy iodobenzene (HTIB) gives the primary amine (VI), which is treated with TsCl and pyridine to yield the sulfonamide (VII). The iodolactone ring is then cleaved with Zn/AcOH affording the norbornene-carboxylic acid (VIII), which is submitted to ozonolysis with O3 to give the dialdehyde (IX). The reduction of (IX) with NaBH4 provides the diol (X), which is cyclized in acidic medium to lactone (XI). The reaction of (XI) with ammonia affords the amide (XII), which is reduced with BH3 to the primary amine (XIII). The protection of (XIII) with 2-(tert-butoxycarbonyloxyimino)-2-phenylacetonitrile (Boc-ON) gives the carbamate (XIV), which is treated with Ts-Cl to yield the ditosylate (XV). The cyclization of (XV) by means of TFA affords the azanoradamantane sulfonamide (XVI), which is treated with calcium in liquid ammonia to obtain thee corresponding primary amine (XVII). Finally, this compound is condensed with 4-amino-5-chloro-2-methoxybenzoic acid (XVIII) by means of carbonyldiimidazole (CDI) in DMF.

1 Becker, D.P.; et al.; Enantioselective synthesis of dual 5-HT4/5-HT3 serotonergic azanoradamantane SC-52491. Tetrahedron 1999, 55, 40, 11787.
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) 32307 bis[(1S)-2-ethoxy-1-methyl-2-oxoethyl] (E)-2-butenedioate C14H20O8 详情 详情
(II) 11183 1,3-Cyclopentadiene C5H6 详情 详情
(III) 32308 bis[(1S)-2-ethoxy-1-methyl-2-oxoethyl] (2R,3R)bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate C19H26O8 详情 详情
(IV) 32309 (2S,3S,6R,9S)-2-iodo-5-oxo-4-oxatricyclo[4.2.1.0(3,7)]nonane-9-carboxylic acid C9H9IO4 详情 详情
(V) 32310 (2S,3S,6R,9S)-2-iodo-5-oxo-4-oxatricyclo[4.2.1.0(3,7)]nonane-9-carboxamide C9H10INO3 详情 详情
(VI) 32311 (2S,3S,6R,9S)-9-amino-2-iodo-4-oxatricyclo[4.2.1.0(3,7)]nonan-5-one C8H10INO2 详情 详情
(VII) 32312 N-[(2S,3S,6R,9S)-2-iodo-5-oxo-4-oxatricyclo[4.2.1.0(3,7)]non-9-yl]-4-methylbenzenesulfonamide C15H16INO4S 详情 详情
(VIII) 32313 (2R,3R)-3-[[(4-methylphenyl)sulfonyl]amino]bicyclo[2.2.1]hept-5-ene-2-carboxylic acid C15H17NO4S 详情 详情
(IX) 32314 (1R,2R,3S,5R)-3,5-diformyl-2-[[(4-methylphenyl)sulfonyl]amino]cyclopentanecarboxylic acid C15H17NO6S 详情 详情
(X) 32315 (1R,2R,3S,5R)-3,5-bis(hydroxymethyl)-2-[[(4-methylphenyl)sulfonyl]amino]cyclopentanecarboxylic acid C15H21NO6S 详情 详情
(XI) 32316 N-[(3aR,4R,5S,6aR)-5-(hydroxymethyl)-3-oxohexahydro-2H-cyclopenta[b]furan-4-yl]-4-methylbenzenesulfonamide C15H19NO5S 详情 详情
(XII) 32317 (1R,2R,3S,5R)-3,5-bis(hydroxymethyl)-2-[[(4-methylphenyl)sulfonyl]amino]cyclopentanecarboxamide C15H22N2O5S 详情 详情
(XIII) 32318 N-[(1S,2S,3R,5S)-2-(aminomethyl)-3,5-bis(hydroxymethyl)cyclopentyl]-4-methylbenzenesulfonamide C15H24N2O4S 详情 详情
(XIV) 32319 tert-butyl ((1S,2S,3S,5R)-3,5-bis(hydroxymethyl)-2-[[(4-methylphenyl)sulfonyl]amino]cyclopentyl)methylcarbamate C20H32N2O6S 详情 详情
(XV) 32320 [(1S,2S,3S,4R)-3-[[(tert-butoxycarbonyl)amino]methyl]-2-[[(4-methylphenyl)sulfonyl]amino]-4-([[(4-methylphenyl)sulfonyl]oxy]methyl)cyclopentyl]methyl 4-methylbenzenesulfonate C34H44N2O10S3 详情 详情
(XVI) 32321 N-[(3S,4S,5R,7R)-1-azatricyclo[3.3.1.0(3,7)]non-4-yl]-4-methylbenzenesulfonamide C15H20N2O2S 详情 详情
(XVII) 32322 (3S,4S,5R,7R)-1-azatricyclo[3.3.1.0(3,7)]nonan-4-amine; (3S,4S,5R,7R)-1-azatricyclo[3.3.1.0(3,7)]non-4-ylamine C8H14N2 详情 详情
(XVIII) 12419 4-Amino-5-chloro-2-methoxybenzoic acid 7206-70-4 C8H8ClNO3 详情 详情
Extended Information