Rhodium(III)‐Catalyzed Allylic C(sp
<sup>3</sup>
)–H Activation of Alkenyl Sulfonamides: Unexpected Formation of Azabicycles
作者:Alexis Archambeau、Tomislav Rovis
DOI:10.1002/anie.201504150
日期:2015.11.2
Unsaturated N‐sulfonamides undergo a RhIII‐ catalyzedallylicC(sp3)H activation followed by insertion with an exogenous internal alkyne. The reaction generates [3.3.0], [4.3.0], and [5.3.0] azabicyclic structures with excellent diastereoselectivity. Deuterium labeling experiments implicate a 1,3‐Rh shift as a key step in the mechanism.
Determining the Scope of the Organolanthanide-Catalyzed, Sequential Intramolecular Amination/Cyclization Reaction: Formation of Substituted Quinolizidines, Indolizidines, and Pyrrolizidines
作者:Gary A. Molander、Shawn K. Pack
DOI:10.1021/jo035205f
日期:2003.11.1
The scope of the lanthanide-mediated, intramolecular amination/cyclization reaction was determined for the formation of substituted quinolizidines, indolizidines, and pyrrolizidines. A methyl group was installed at diverse positions in the substrates to determine the sense and magnitude of diastereoselection. High diastereoselectivity (>20:1) was achieved for the formation of some quinolizidines and
The disclosure generally relates to the novel compounds of formula I, including pharmaceutically acceptable salts, which are CGRP receptor antagonists. The disclosure also relates to pharmaceutical compositions and methods for using the compounds in the treatment of CGRP related disorders including migraine and other headaches, neurogenic vasodilation, neurogenic inflammation, thermal injury, circulatory shock, flushing associated with menopause, airway inflammatory diseases such as asthma, and chronic obstructive pulmonary disease (COPD).