Palladium-catalyzed oxidative cross-coupling of azole-4-carboxylates with indoles: an approach to the synthesis of pimprinine
作者:Haipin Zhou、Kuo Gai、Aijun Lin、Jinyi Xu、Xiaoming Wu、Hequan Yao
DOI:10.1039/c4ob01844c
日期:——
An efficient and straightforward method for the production of 5-(3-indolyl)azoles incorporating the privileged structures indoles and azoles via palladium-catalyzed double C-H bond cleavage under mild conditions was disclosed. As expected, this protocol provided an easy method for the synthesis of indolealkaloids pimprinine and WS-30581 A in moderate yields.
The present invention relates to compounds of formula (I)
and pharmaceutically acceptable salts and solvates thereof, wherein the substituents are as defined herein, compositions containing such compounds and the uses of such compounds for the treatment of various diseases and conditions such as asthma.
Asymmetric synthesis of 2-alkyl-3-thiazoline carboxylates: stereochemistry of the MnO2-mediated oxidation of cis- and trans-2-alkyl-thiazolidine-(4R)-carboxylates
作者:Xavier Fernandez、Elisabet Duñach
DOI:10.1016/s0957-4166(01)00219-1
日期:2001.6
The asymmetric synthesis of a series of 3-thiazoline carboxylates, 2, was effected by MnO2 oxidation of the corresponding cis/trans thiazolidines, 1. The stereochemistry of the oxidation reaction was studied using NMR and chiral GC analyses. Compounds 2 were obtained with enantiomeric excesses (e.e.s) in the range of 40–100%.
A tetracyclic compound of the formula: ##STR1## wherein A and the atoms to which it is attached and the optional double bond represent a mono- or di-heterocyclic ring selected from: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and X are specifically defined, which compounds are useful in the treatment of dopamine-related neurological, psychological and cardiovascular disorders as well as in the treatment of substance abuse and other addictive behavior disorders, cognitive impairment and attention deficit disorder.
The present invention relates to spirocyclic amide derivatives of the formula I,
pharmaceutically acceptable salts thereof, a process for their preparation, pharmaceutical compositions containing them, and their use in therapy.
本发明涉及公式 I 的螺环酰胺衍生物,其药学上可接受的盐,其制备方法,含有它们的制药组合物以及它们在治疗中的应用。