Electrocyclization of cis-dienals in organic synthesis: a new and versatile synthetic method for the preparation of aryl- and heteroaryl-fused coumarins
作者:Yung-Son Hon、Tze-Wei Tseng、Chia-Yi Cheng
DOI:10.1039/b912887e
日期:——
Benzo-, furo-, thieno-, and pyrido[f]coumarins were prepared by generating the 2H-pyran-2-one moieties from the oxidation of the corresponding 2H-pyran rings, which were formed in situ from the electrocyclization of cis-dienals.
Guiotto, A.; Manzini, P.; Chilin, A., Journal of Heterocyclic Chemistry, 1985, vol. 22, p. 649 - 656
作者:Guiotto, A.、Manzini, P.、Chilin, A.、Pastorini, G.、Rodighiero, P.
DOI:——
日期:——
Juettermann, R.; Averbeck, D.; Averbeck, S., Farmaco, Edizione Scientifica, 1985, vol. 40, # 1, p. 3 - 13
作者:Juettermann, R.、Averbeck, D.、Averbeck, S.、Bastian, G.、Royer, R.
DOI:——
日期:——
SHAH K. R.; TRIVEDI K. N., J. INDIAN CHEM. SOC. <JICS-AH>, 1975, 52, NO 5, 436-437
作者:SHAH K. R.、 TRIVEDI K. N.
DOI:——
日期:——
METHODS FOR DIRECTING DIFFERENTIATION OF CLONOGENIC NEURAL STEM CELLS WITH COUMARINS
申请人:HE Cheng
公开号:US20090170930A1
公开(公告)日:2009-07-02
A method for promoting differentiation of clonogenic neural stem cells (NSCs), comprising administering to a patient in the need of such promoting a coumarin compound represented by formula I or by formula II. The representative coumarin compounds include 7-hydroxycoumarin, daphnoretin, scopoletin, edgeworin, aesculetin and esculetin-6-β-D-glucopyranoside. The coumarin compounds showed significant activity of directing the differentiation of NSCs in pharmacological test and thereof could be used to prepare drugs to direct NSCs differentiated to oligodendrocyte progenitor cells (OPCs) for the treatment of demyelinating diseases or spinal cord injury. The drug could be a pure coumarin compound or a pharmaceutical composition comprising a therapeutical dose of a coumarin compound as active ingredients and a pharmaceutically-acceptable carrier. The content of the active ingredients in the pharmaceutical composition is between 0.1% and 99.5% by weight.