Rh-catalyzed intramolecular aromatic C–H insertion of α-diazo β-ketoesters: synthesis of 4-carbonyl chroman derivatives
作者:Xiaolin Zhang、Mei Lei、Yi-Nan Zhang、Li-Hong Hu
DOI:10.1016/j.tet.2014.03.093
日期:2014.5
A Rh-catalyzed intramoleculararomatic C–H insertion of α-diazo β-ketoesters was developed. This protocol offers a practical strategy for the synthesis of 4-carbonyl chroman derivatives with high yield and is compatible with a wide variety of substituents. Synthetic applications of the 4-carbonyl chroman were also demonstrated.
Pfeiffer; Willems, Chemische Berichte, 1929, vol. 62, p. 1244
作者:Pfeiffer、Willems
DOI:——
日期:——
NOVEL PYRIMIDINE DERIVATIVE
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP1019501A1
公开(公告)日:2000-07-19
US6197774B1
申请人:——
公开号:US6197774B1
公开(公告)日:2001-03-06
[EN] NOVEL PYRIMIDINE DERIVATIVE<br/>[FR] NOUVEAU DERIVE DE LA PYRIMIDINE
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:WO1998041526A1
公开(公告)日:1998-09-24
(EN) The present invention provides a novel pyrimidine derivative represented by general formula (1), wherein R, R4 and R8 are the same as defined in the specification, or pharmaceutically acceptable salt thereof, which possesses an excellent activity for inhibiting the formation of NO (nitrogen oxide) $i(in vivo).(FR) L'invention porte sur un nouveau dérivé de la pyrimidine de formule générale (1) dans laquelle: R, R4 et R8 sont identiques et définis dans la description, ou sur ses sels pharmacocompatibles, et qui possèdent une excellente activité inhibitrice de la formation $i(in vivo) de NO (oxyde d'azote).