N-alkylation of lactams with secondary heterobenzylic bromides
作者:Ming Yu、Karis Stevenson、Gene Zhou
DOI:10.1016/j.tetlet.2014.08.060
日期:2014.10
We herein report a general N-alkylation reaction of lactams with secondary heterobenzylic bromides. This methodology features mild reaction condition, moderate to high product isolation yield, and broad substrate scope. Good chemical and structural tolerance has also been demonstrated by both the secondary heterobenzylic bromides and lactam substrates.
New synthesis of 3,3-disubstituted piperidin-2-ones from esters and 1-(3-halopropyl)-2,5-dimethylpyrroles
作者:V. D. Gvozdev、K. N. Shavrin、O. M. Nefedov
DOI:10.1007/s11172-019-2674-1
日期:2019.11
3,3-Disubstituted piperidin-2-ones were obtained by alkylation of carboxylic acid esters with 1-(3-halopropyl)-2,5-dimethylpyrroles using lithium diisopropylamide as a base followed by the removal of 2,5-dimethylpyrrole protection and intramolecular cyclization. The overall yields of the target products amounted to 78% in two synthetic steps.
COMPOUNDS FOR THE INHIBITION OF INTEGRINS AND USE THEREOF
申请人:Zischinsky Gunter
公开号:US20090104116A1
公开(公告)日:2009-04-23
The present invention is related to a compound of formula (I), wherein A is a nonaromatic heterocyclic ring, Ar is either absent or phenylene; Ψ is a radical of formula (II), R
2
is a hydrophobic moiety; and G is a radical containing one or more moieties selected from the group consisting of NH, OH and a basic moiety. The compounds are inhibitors of integrins, especially antagonists of the fibronectin receptor alpha5beta1, useful as anti-angiogenic agents.
HETEROCYCLIC COMPOUNDS FOR THE INHIBITION OF INTEGRINS AND USE THEREOF
申请人:Zischinsky Gunther
公开号:US20090203745A1
公开(公告)日:2009-08-13
The present invention relates to compounds of formula (I) wherein: A is a radical selected from the group comprising aromatic heterocyclic 5-membered ring systems; Ar is a radical selected from the group comprising optionally substituted 5- and 6-membered aromatic ring systems, whereby the ring system contains 0, 1, 2 or 3 heteroatoms selected from the group comprising N, O and S; Z is a linker and Ψ is a radical of formula (II) and their use for the inhibition of integrin.
[EN] BENZENE RING DERIVATIVE, AND COMPOSITION AND PHARMACEUTICAL USE THEREOF<br/>[FR] DÉRIVÉ CYCLIQUE BENZÉNIQUE, COMPOSITION ET UTILISATION PHARMACEUTIQUE ASSOCIÉES<br/>[ZH] 一种苯环衍生物及其组合物和药学上的应用