Synthesis and activities of a thienyl dihydropyridine series on intracellular calcium in a rat pituitary cell line (GH3/B6)
摘要:
The synthesis of a thienyl dihydropyridine series according to the Hantzsch method is described. The influence of these derivatives on intracellular calcium ([Ca2+]i) in GH3 cells was evaluated in vitro using spectrofluorimetry with indol as Ca2+ fluorescent probe. We compared their effects on [Ca2+]i and hormone release with those of nifedipine. The most active tested compounds on [Ca2+]i were those methylated on the 3-position of the thienyl ring (activity was about 75% of nifedipine). Interestingly, the most efficient compounds on [Ca2+]i were also the most efficient on hormone release.
一些 锰先前已经报道了使用H 2 O 2作为末端氧化剂的,使用具有结合有吡啶基基团的结构的配体的有机基催化剂,以在烯烃和醇的氧化中实现高周转率和选择性。在这里,我们报告我们最近的发现,这些配体在原位分解为吡啶-2-羧酸和其衍生物,在锰源,H 2 O 2和碱的存在下。重要的是,分解发生在有机底物催化氧化开始之前。发现与锰源一起形成的吡啶-2-甲酸提供了观察到的催化活性。这一系列的退化吡啶基 配体 吡啶-2-羧酸在反应条件下的反应通过1 H NMR光谱证实。在所有情况下,锰/的活性和选择性吡啶基 包含的配体体系与观察到的相同数量的当量 吡啶-2-羧酸; 除此之外,当吡啶-2-羧酸直接使用H 2 O 2时,没有观察到滞后相,效率从6–8当量降低。与基于吡啶-2-基的配体达到1–1.5当量。和吡啶-2-羧酸。
Thienyl substituted acylguanidines as inhibitors of bone resorption and vitronectin receptor antagonists
申请人:Aventis Pharma Deutschland GmbH
公开号:US06566366B1
公开(公告)日:2003-05-20
Compounds of the formula
and salts thereof wherein the substituents are defined as in accordance with the specification useful for the treatment of tumor growth, osteoporosis, inflammation and cardiovascular disorders.
该式化合物及其盐,其中取代基的定义符合规范,适用于肿瘤生长、骨质疏松、炎症和心血管疾病的治疗。
Phosphorylamides, their preparation and use
申请人:Takeda Chemical Industries, Ltd.
公开号:US05840917A1
公开(公告)日:1998-11-24
A phosphorylamide derivative represented by the general formula (I): ##STR1## wherein R represents an amino group that may be substituted, or a salt thereof, possesses potent antibacterial activity against Helicobacter bacterium, especially Helicobacter pylori, and is useful for prevention or treatment of digestive diseases caused by Helicobacter bacterium, solely or in combination with an antacid or an acid secretion inhibitor.
The present invention provides for novel compounds of Formulas I and II and pharmaceutically acceptable salts and co-crystals thereof which have glucokinsae activator activity. The present invention further provides for pharmaceutical compositions comprising the same as well as methods of treating, preventing, delaying the time to onset or reducing the risk for the development or progression of a disease or condition for which one or more glucokinase activator is indicated, including Type 1 and 2 diabetes, impaired glucose tolerance, insulin resistance and hyperglycemia. The present invention also provides for processes of making the compounds of Formulas I and II, including salts and co-crystals thereof, and pharmaceutical compositions comprising the same.
The present invention provides for novel compounds of Formulas I and II and pharmaceutically acceptable salts and co-crystals thereof which have glucokinase activator activity. The present invention further provides for pharmaceutical compositions comprising the same as well as methods of treating, preventing, delaying the time to onset or reducing the risk for the development or progression of a disease or condition for which one or more glucokinase activator is indicated, including Type 1 and 2 diabetes, impaired glucose tolerance, insulin resistance and hyperglycemia. The present invention also provides for processes of making the compounds of Formulas I and II, including salts and co-crystals thereof, and pharmaceutical compositions comprising the same.