Provided herein are racemic or enantiomerically enriched benzoyl piperidine compounds and pharmaceutically useful salts thereof, pharmaceutical compositions comprising an effective amount of racemic or enantiomerically enriched benzoyl piperidine compounds to treat central nervous system diseases and methods of treating central nervous system diseases in a mammal, in particular psychoses and cognition disorders.
MeOTf-catalyzed formal [4 + 2] annulations of styrene oxides with alkynes leading to polysubstituted naphthalenes through sequential electrophilic cyclization/ring expansion
作者:Song Zou、Zeyu Zhang、Chao Chen、Chanjuan Xi
DOI:10.1016/j.cclet.2021.12.012
日期:2022.6
MeOTf-catalyzed formal [4 + 2] annulation of styrene oxides with alkynes to afford polysubstituted naphthalenes has been realized, which undergoes sequential electrophiliccyclization/ring expansion. A range of substrates were tolerated in the formation of naphthalene derivatives with high regioselectivity in satisfactory yields. The reaction could also be carried out on gram scale.
申请人:Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
公开号:US20150238597A1
公开(公告)日:2015-08-27
The present invention relates to the field of synthesizing and biologically evaluating of a novel class of carbohydrate-based vaccines. The new vaccines consist of a multi-modular structure which allows applying the vaccine to a whole variety of pathogenes. This method allows preparing vaccines against all pathogens expressing immunogenic carbohydrate antigens. As conjugation of antigenic carbohydrates to proteins is not required the conjugate vaccine is particularly heat stable. No refrigeration is required, a major drawback of protein-based vaccines.
Reaction of Two Differently Functionalized Oxiranes with Nickel Perchlorate: A Modular Entry to Highly Substituted 1,3-Dioxolanes
作者:Zuliang Chen、Yuanjing Xiao、Junliang Zhang
DOI:10.1002/ejoc.201300558
日期:2013.8
Nickelperchlorate catalyzed sequential Meinwald rearrangement of a terminal oxirane through C–O bond cleavage, and cycloaddition with a donor–acceptor oxirane through C–C bond cleavage was developed. The same catalyst mediates the ring opening of the oxirane moiety in twodifferent ways. This method provides an alternative route to synthesize highlysubstituted1,3-dioxolanes by using oxiranes instead
[EN] HETEROCYCLIC P2Y14 RECEPTOR ANTAGONISTS<br/>[FR] ANTAGONISTES HÉTÉROCYCLIQUES DU RÉCEPTEUR P2Y14
申请人:US HEALTH
公开号:WO2019157417A1
公开(公告)日:2019-08-15
Disclosed are compounds of formulas (I)-(IX) for treating or preventing a disease or disorder responsive to antagonism of a P2Y14R receptor agonist in a mammal in need thereof, wherein R1-R8, X, Y, Z, X', Y', Z', and A are as defined herein, that are useful in treating an inflammatory such as asthma, cystic fibrosis, and sterile inflammation of the kidney.