[EN] PROTON PUMP INHIBITORS<br/>[FR] INHIBITEURS DE POMPE A PROTONS
申请人:TAKEDA PHARMACEUTICAL
公开号:WO2006036024A1
公开(公告)日:2006-04-06
Proton pump inhibitors which have excellent proton pumping activity and which can be converted in vivo into proton pump inhibitors to exhibit antiulcer effect and so on, containing compounds represented by the general formula (I) or salts thereof or prodrugs of the same: (I) wherein X and Y are each independently a free valency or a spacer whose main chain has 1 to 20 carbon atoms; R1 is an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group; R2, R3 and R4 are each independently hydrogen, an optionally substituted hydrocarbon group, optionally substituted thienyl, optionally substituted benzo[b]thienyl, optionally substituted furyl, optionally substituted pyridyl, optionally substituted pyrazolyl, optionally substituted pyrimidinyl, acyl, halogeno, cyano, or nitro; and R5 and R6 are each independently hydrogen or an optionally substituted hydrocarbon group.
Chiral iminophosphorane catalyzed asymmetric sulfenylation of 2-substituted alkylcyanoacetates
作者:Yanxia Zhang、Henry N.C. Wong、Xin-Yan Wu、Jianwei Han
DOI:10.1016/j.tetlet.2020.151755
日期:2020.4
Chiral iminophosphorane organocatalysis enables a wide range of asymmetric transformations with excellent level of enantioselectivity. Herein, an asymmetric sulfenylation of 2-substituted alkylcyanoacetates was achieved with tartaric acid derived chiral iminophosphoranes in an efficient manner. The iminophosphorane catalyst exhibits high catalytic activity, and as a result, the corresponding sulfenylated
Pyrrole as a Directing Group: Regioselective Pd(II)-Catalyzed Alkylation and Benzylation at the Benzene Core of 2-Phenylpyrroles
作者:Johannes M. Wahl、Alexander Pöthig、Thorsten Bach
DOI:10.1021/acs.orglett.6b00141
日期:2016.2.19
Pyrrole has been employed for the first time as a directing group in the Pd(II)-catalyzed ortho-functionalization of C(sp2)–Hbonds. A variety of substituted 2-phenylpyrroles were successfully methylated, alkylated, or benzylated in the ortho-position of the benzene ring, yielding the respective 2-substituted pyrrol-2-yl benzenes (36 examples, 51–93% yield). Neither additives nor additional ligands
A proton pump inhibitor containing a compound represented by the formula (I)
wherein X and Y are the same or different and each is a bond or a spacer having 1 to 20 carbon atoms in the main chain, R
1
is an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group, R
2
, R
3
and R
4
are the same or different and each is a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted thienyl group, an optionally substituted benzo[b]thienyl group, an optionally substituted furyl group, an optionally substituted pyridyl group, an optionally substituted pyrazolyl group, an optionally substituted pyrimidinyl group, an acyl group, a halogen atom, a cyano group or a nitro group, R
5
and R
6
are the same or different and each is a hydrogen atom or an optionally substituted hydrocarbon group, which has a superior proton pump action and shows an antiulcer activity and the like after conversion to a proton pump inhibitor in the body, or a salt thereof. or a prodrug thereof is provided.