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【结 构 式】

【分子编号】16405

【品名】(3aR,7aS)-2,2-dimethyltetrahydro-1,3-benzodioxol-5(4H)-one

【CA登记号】

【 分 子 式 】C9H14O3

【 分 子 量 】170.20836

【元素组成】C 63.51% H 8.29% O 28.2%

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:(XXXVIII)

10) Albertini et al. reported a formal synthesis of epibatidine utilizing the enantiopure cyclohexanone (XXXVIII) as a convenient starting material which was easily available from D-(-)quinic acid (XXXVII). An important step in this synthesis was the regioselective intramolecular nucleophilic ring opening of the vicinal diol cyclic sulfate (XXXIX). When (XXXIX) was subjected to hydrogenation, the azido group was converted into an amino group and an internal displacement took place spontaneously to form the inner salt (XL). Three standard manipulations furnished the optically pure ketone (VIII), which had already been converted to epibatidine as described by Fletcher and coworkers.

1 Albertini, E.; Barco, A.; Benetti, S.; De Risi, C.; Pollini, G.P.; Zanirato, V.; Enantioselective approach to 7-azabicyclo[2.2.1]heptane ring systems using D-(-)-quinic acid as the chiral educt: Application to the formal synthesis of (+)-epibatidine. Tetrahedron Lett 1997, 38, 4, 681-4.
2 Bai, D.; Xu, R.; Zhu, X.; Epibatidine. Drugs Fut 1997, 22, 11, 1210.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(IXL) 16406 (3aR,5S,7aS)-5-azidohexahydro-1,3,2lambda(6)-benzodioxathiole-2,2-dione C6H9N3O4S 详情 详情
(VIII) 16374 (1R,4S)-7-[(2,2-dimethylpropanoyl)oxy]-7-azabicyclo[2.2.1]heptan-2-one C11H17NO3 详情 详情
(XXXVII) 11524 D-Quinic acid; D-(-)-Chinic acid; D-(-)-Quinic acid; (3R,5R)-1,3,4,5-Tetrahydroxycyclohexanecarboxylic acid 77-95-2 C7H12O6 详情 详情
(XXXVIII) 16405 (3aR,7aS)-2,2-dimethyltetrahydro-1,3-benzodioxol-5(4H)-one C9H14O3 详情 详情
(XL) 16407 (1R,2R,4S)-2-(sulfonatooxy)-7-azoniabicyclo[2.2.1]heptane C6H11NO4S 详情 详情
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