18423-69-3Relevant articles and documents
Synthesis method and application of cubebin
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Paragraph 0024; 0047-0048, (2021/06/22)
The invention discloses a synthesis method of cubebin, which comprises the following steps: using 1,3-benzodioxole-5-carboxaldehyde and malonic acid as initial raw materials to generate 1,3-benzodioxole-5-propanoic acid, reacting the 1,3-benzodioxole-5-propanoic acid with oxalyl chloride to generate 1,3-benzodioxole-5-propionyl chloride, then reacting the 1,3-benzodioxole-5-propionyl chloride with (S)-4-benzyl-2-oxazolidinone to generate corresponding amide, reacting a product with bromopropyl to generate corresponding olefin, generating a corresponding carbonyl compound under the catalysis of a combined oxidant OsO4/NMO, using the carbonyl compound to prepare a corresponding hydroxyl compound, oxidizing the hydroxyl compound into a lactone compound by using a Fetizon reagent, reacting the lactone compound with 5-(bromomethyl)-1,3-benzodioxole, and finally, reducing the product by using diisobutylaluminium hydride to obtain cubebin. The invention further discloses application of cubebin in sedative and peaceful sleep. The invention provides a potential therapeutic drug for calming and sleeping.
Total synthesis of (-)-bicubebin A, B, (+)-bicubebin C and structural reassignment of (-)-cis-cubebin
Davidson, Samuel J.,Pearce, A. Norrie,Copp, Brent R.,Barker, David
supporting information, p. 5368 - 5371 (2017/11/06)
The first total synthesis of (-)-bicubebin A, and two previously unreported dilignans, (-)-bicubebin B and (+)-bicubebin C has been achieved through the dimerization of (-)-cubebin, confirming the structure and absolute stereochemistry of (-)-bicubebin A. Analysis of the data for (-)-bicubebin B showed it matched that of reported compound (-)-cis-cubebin. The NMR data of the subsequently synthesized proposed structure of cis-cubebin confirmed that its original proposed structure was incorrect.
General Conjugate-Addition Method for the Synthesis of Enantiomerically Pure Lignans. Total Synthesis of (-)- and (+)-Burseran, (-)-Dehydroxycubebin, (-)-Trichostin, (-)-Cubebin, (-)-5''-Methoxyhinokinin, and (-)-Hinokinin
Rehnberg, Nicola,Magnusson, Goeran
, p. 4340 - 4349 (2007/10/02)
Conjugate addition of benzylic diphenyldithioacetal anions to enantiomerically pure (-)-(2R)-and (+)-(2S)-(benzyloxy)-2,5-dihydro-4-furan (2 r and 2 s) gave complete lignan skeletons of the dibenzylbutane class.Desulfurization followed by hydrogenolysis and, when appropriate, oxidation gave the title enantiomerically pure > 99 percent ee) lignans 45 - 50 in 24 - 35 percent overall yields from 2 r and 2 s.