UV irradiation of various electron deficient pyrrole derivatives induces a novel methathesis sequence resulting in selective cleavage of the 2,3-pyrrole bond. The overall sequence has been shown to proceed by two discrete wavelength-dependent steps involving sequential [2+2] cyclobutane formation followed by photochemically mediated retro-[2+2] to the products.
Asymmetric substitutions of O-Boc-protected Morita–Baylis–Hillman adducts with pyrrole and indole derivatives
作者:Long Huang、Yin Wei、Min Shi
DOI:10.1039/c1ob06671d
日期:——
An efficient asymmetricsubstitution process of O-Boc-protectedMorita–Baylis–Hillmanadducts with various pyrrole and indole derivatives has been developed in the presence of (DHQD)2PYR in THF, affording the corresponding products in good to high yields (up to 99% yield) and moderate to high ee values (up to 92 and 96% ee) under mild conditions.
Complexity from Simplicity: Tricyclic Aziridines from the Rearrangement of Pyrroles by Batch and Flow Photochemistry
作者:Katie G. Maskill、Jonathan P. Knowles、Luke D. Elliott、Roger W. Alder、Kevin I. Booker-Milburn
DOI:10.1002/anie.201208892
日期:2013.1.28
Molecular acrobatics: Irradiation of N‐butenyl‐substituted pyrroles that bear an electron‐withdrawing group leads to complex tricyclicaziridines through an unprecedented photocycloaddition–rearrangement sequence. Gram quantities of these complex products could be produced by using a bespoke flow reactor (see picture, FEP=fluorinated ethylene propylene).
SUBSTITUTED 4-AMINO-PYRROLOTRIAZINE DERIVATIVES USEFUL FOR TREATING HYPER-PROLIFERATIVE DISORDERS AND DISEASES ASSOCIATED WITH ANGIOGENESIS
申请人:Dixon Julie
公开号:US20120165314A1
公开(公告)日:2012-06-28
This invention relates to novel pyrrozolotriazine compounds, pharmaceutical compositions containing such compounds and the use of those compounds and compositions for the prevention and/or treatment of hyper-proliferative disorders and diseases associated with angiogenesis.
The invention provides a novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated B cell activities, particularly diseases or disorders that involve aberrant activation of inositol 1,4,5-trisphosphate 3-kinase B (ITPKb).