Regio- et stereo-reactivite d'une lactone dissymetrique. Determination de structure par effets nucleaires overhauser et modelisation moleculaire.
摘要:
Lactone I is an important intermediate in the synthesis of compounds with therapeutic properties. In order to prepare new derivatives, reactivity of I has been studied. Cis and trans conformations of both 2,3-diphenyl-1-oxabicyclo [3,1,0] hexanes VIIIa and VIIIb were assigned by H-1 N.M.R spectroscopy using NOE DIFF experiments, and molecular modelling.
[EN] BENZODIOXANE DERIVATIVES AND THEIR PHARMACEUTICAL USE<br/>[FR] DÉRIVÉS DE BENZODIOXANE ET LEUR UTILISATION PHARMACEUTIQUE
申请人:ORION CORP
公开号:WO2018002437A1
公开(公告)日:2018-01-04
Compounds of formula (I): wherein Ra and Rb are as defined in the claims, exhibit alpha2C antagonistic activity and are thus useful as alpha2C antagonists.
式(I)的化合物:其中Ra和Rb如权利要求中定义的,具有α2C拮抗活性,因此可用作α2C拮抗剂。
Ruhemann, Journal of the Chemical Society, 1902, vol. 81, p. 1214
作者:Ruhemann
DOI:——
日期:——
BENZODIOXANE DERIVATIVES AND THEIR PHARMACEUTICAL USE
申请人:Orion Corporation
公开号:US20190152992A1
公开(公告)日:2019-05-23
Compounds of formula I,
wherein R
a
and R
b
are as defined in the claims, exhibit alpha2C antagonistic activity and are thus useful as alpha2C antagonists.
Furan-2(3H)- and -2(5H)-ones. Part 6. Di-π-methane rearrangement of the α-substituted 4-benzylfuran-2(5H)-one system
The effect of the ‘central methane’ substitution on the di-π-methanerearrangement in 4-benzyl-2,5-dihydrofuran-2-ones 8a–d was investigated. Significant enhancement of efficiency in the rearrangement leading in high combined yields to two isomeric products, endo-12 and exo-12, is discussed in terms of both the substituent effects at the benzylic carbon and the restrained features of the ring-enrolled
Regio- et stereo-reactivite d'une lactone dissymetrique. Determination de structure par effets nucleaires overhauser et modelisation moleculaire.
作者:C. Berrier、B. Bonnaud、J.F. Patoiseau、D. Bigg
DOI:10.1016/s0040-4020(01)91029-4
日期:1991.11
Lactone I is an important intermediate in the synthesis of compounds with therapeutic properties. In order to prepare new derivatives, reactivity of I has been studied. Cis and trans conformations of both 2,3-diphenyl-1-oxabicyclo [3,1,0] hexanes VIIIa and VIIIb were assigned by H-1 N.M.R spectroscopy using NOE DIFF experiments, and molecular modelling.