Phenylaliphatylaminoalkanediphosphonic acids of the formula ##STR1## in which R.sub.1 is an aliphatic hydrocarbon radical having 4 and not more than 7 C atoms and substituted by phenyl, R.sub.2 is a monovalent aliphatic hydrocarbon radical having 1 and not more than 4 C atoms and alk is a divalent aliphatic hydrocarbon radical having 2 and not more than 4 C atoms, and their salts, have a particularly pronounced regulating action on calcium metabolism and can be used as medicaments for the treatment of diseases to be attributed to disturbances thereof. They are prepared, for example, for reacting a compound of the formula ##STR2## in which X.sub.3 denotes carboxyl, with a phosphorylating agent and hydrolyzing the primary product.
A General Acid‐Mediated Hydroaminomethylation of Unactivated Alkenes and Alkynes
作者:Daniel Kaiser、Veronica Tona、Carlos R. Gonçalves、Saad Shaaban、Alberto Oppedisano、Nuno Maulide
DOI:10.1002/anie.201906910
日期:2019.10.7
its considerable potential to streamline amine synthesis. State-of-the-art protocols for hydroaminomethylation of alkenes rely largely on transition-metal catalysis, enabling this transformation only under highly designed and controlled conditions. Here we report a broadly applicable, acid-mediated approach to the hydroaminomethylation of unactivated alkenes and alkynes. This methodology employs cheap
Herein is described a new class of selective sigma1 ligands consisting of tetrahydroisoquinoline-hydantoin (Tic-hydantoin) derivatives. Compound 1a has high affinity (IC50 = 16 nM) for sigma1 receptor and is selective in a large panel of therapeutic targets. This study presents structural changes on the side chain of the Tic-hydantoin core. Analogs of higher affinity could be identified (IC50 approximately
A novel class of imidazo heterocyclic compounds, pharmaceutical compositions comprising them and use thereof in the treatment and/or prevention of diseases and disorders related to the histamine H3 receptor. More particularly, the compounds are useful for the treatment and/or prevention of diseases and disorders in which an interaction with the histamine H3 receptor is beneficial.
Substituted diphenyloxazoles, the synthesis thereof, and the use thereof as fluorescence probes
申请人:3-Dimensional Pharmaceuticals, Inc.
公开号:US20030105111A1
公开(公告)日:2003-06-05
The present invention is directed to a compound of Formula I:
1
wherein A, R
1
, and R
2
are defined herein. The present invention is also directed to compositions comprising compounds of Formula I, methods of using compounds of Formula I, and methods of making compounds of Formula I.