The specification generally relates to compounds of Formula (I):
and pharmaceutically acceptable salts and prodrugs thereof, where R
1
, R
4
, R
5
, R
6
, R
7
, Linker, X, Y, A, G, D and E have any of the meanings defined herein. This specification also relates to the use of such compounds and pharmaceutically acceptable salts and prodrugs thereof in methods of treatment of the human or animal body, for example in prevention or treatment of cancer. This specification also relates to processes and intermediate compounds involved in the preparation of such compounds and to pharmaceutical compositions containing them.
This invention provides compounds of the formula:
wherein X is
wherein R
1
and R
2
together with the phenyl to which they are bound may form a bicyclic, fused heterocyclic ring and all other variables are as defined herein, their use in pulmonary inflammation or bronchoconstriction therapy and compositions comprising and processes for preparing the same are provided.
Palladium-Catalyzed Synthesis of Tricyclic Indoles via a N–S Bond Cleavage Strategy
作者:Bo-Sheng Zhang、Fan Wang、Xue-Ya Gou、Ying-Hui Yang、Wan-Yuan Jia、Yong-Min Liang、Xi-Cun Wang、Yuke Li、Zheng-Jun Quan
DOI:10.1021/acs.orglett.1c02715
日期:2021.10.1
bond cleavage with vinyl palladium, thus achieving a highly selective C–N coupling reaction in the Catallani–Lautens reaction system. On the basis of this discovery, a one-step synthesis of highly functionalized tricyclic indole derivatives was realized.
We demonstrate a Au(I)-mediated three-component reaction to DNA-tagged highly substituted 6-oxa-1,2-diazaspiro[4.4]nonanes from either DNA-coupled aldehydes, hydrazides, or alkynols. The choice of the starting material coupled to the DNA tag was critial for the purity of the product as the DNA-aldehyde conjugate yielded the purest products, whereas the alkynol- and hydrazide conjugates returned complex