Preparation of Hydantoins by Catalytic Oxidative Carbonylation of α-Amino Amides
摘要:
Hydantoins can be synthesized from the corresponding amino amides employing oxidative catalytic carbonylation using W(CO)(6) as the catalyst, I-2 as the oxidant, CO as the carbonyl source, and DBU as base. Secondary amides afford the hydantoins in good to excellent yields, which decrease as the steric bulk of the N-alkyl substituent increases.
[EN] GLYT2 MODULATORS<br/>[FR] MODULATEURS DU GLYT2
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2005044810A1
公开(公告)日:2005-05-19
α-, β-, and Ϝ-amino acid derivatives of formula I are disclosed as selective GlyT2 inhibitors for the treatment of central nervous system (CNS) conditions such as muscle spasticity, tinnitus, epilepsy and neuropathic pain. Formula I
作者:Ronald L Wolin、Hariharan Venkatesan、Liu Tang、Alejandro Santillán、Tristin Barclay、Sandy Wilson、Doo Hyun Lee、Timothy W Lovenberg
DOI:10.1016/j.bmc.2004.05.042
日期:2004.8
alpha-amino acid derivatives were prepared as glycine transport inhibitors and their ability to block the uptake of [(14)C]-glycine in COS7 cells transfected with human glycine transporter-2 (hGlyT-2) was evaluated. An array of substituents at the chiral center was studied and overall, L-phenylalanine was identified as the preferred amino acid residue. Compounds prepared from l-amino acids were more
Cucurbit [n] uril compounds and analogs, and methods of making and using the same
申请人:Isaacs Lyle
公开号:US20050080068A1
公开(公告)日:2005-04-14
Cucurbit [n] uril compounds containing phthalhydrazide units in a macrocyclic wall thereof. The compounds are used advantageously to form host-guest complexes, for example.
Certain α-, β-, and γ-amino acid derivatives are disclosed as selective GlyT2 inhibitors for the treatment of central nervous system (CNS) conditions such as muscle spasticity, tinnitus, epilepsy and neuropathic pain.