RADIOTRACER PRECURSOR AND METHOD FOR PREPARING THE SAME
申请人:LIU SHOW-WEN
公开号:US20140073803A1
公开(公告)日:2014-03-13
A precursor SnBZM for a dopamine receptor radiotracer and a method for preparing the same are revealed. The precursor includes a tributyltin group (Bu
3
Sn) that is easy to be replaced. Thus a dopamine receptor radiotracer
123
I-IBZM can be produced at high yield rate by a substitution reaction of the precursor. At the same time, both the method for preparing the precursor SnBZM and a method for preparing a reference standard IBZM are simplified. Moreover, stability of each product is improved.
Synthesis of benzamides through direct condensation of carboxylic acids and amines in the presence of diatomite earth@IL/ZrCl4 under ultrasonic irradiation
condensation of benzoic acids and amines underultrasonicirradiation in the presence of Lewis acidic ionicliquid immobilized on diatomite earth (diatomite earth@IL/ZrCl4). A new, highly efficient and green solid acid catalyst was easily prepared via a two-step procedure and used as an effective reusable catalyst. The prepared catalyst provides active sites for the synthesis of benzamides. The advantages of
据报道,绿色,快速,温和且高效的途径可制备苯甲酰胺衍生物。该反应是通过在超声波辐射下,在固定在硅藻土上的路易斯酸性离子液体(硅藻土Earth @ IL / ZrCl 4)存在下,通过苯甲酸和胺的直接缩合进行的。)。通过两步程序可以轻松制备一种新型的高效绿色固体酸催化剂,并将其用作有效的可重复使用的催化剂。制备的催化剂提供了用于合成苯甲酰胺的活性位点。该方法的优点是使用了优良且可回收的催化剂,反应时间短,过程简单,产率高且环保的工艺以及将超声波辐射用作绿色而强大的技术。由于苯甲酰胺广泛用于制药,造纸和塑料工业,并且还用作合成治疗剂的中间产品,因此针对此类化合物提出的新合成方法可能具有相当重要的意义。
Potential neuroleptic agents. 3. Chemistry and antidopaminergic properties of substituted 6-methoxysalicylamides
作者:Tomas De Paulis、Yatendra Kumar、Lars Johansson、Sten Raemsby、Lennart Florvall、Haakan Hall、Kristina Aengeby-Moeller、Sven Ove Oegren
DOI:10.1021/jm00147a025
日期:1985.9
A series of substituted 6-methoxysalicylamides were synthesized from their corresponding 2,6-dimethoxybenzamides by demethylation of one methoxy group with boron tribromide. Substituted 6-methoxysalicylamides having a lipophilic aromatic substituent in the 3-position para with respect to the methoxy group, e.g. a bromo or an iodo atom or an ethyl or a propyl group, and having an (S)-N-(1-alkyl-2-pyrrolidinyl)methyl moiety as the side chain were found to be potent blockers of [3H]spiperone binding in vitro and potent inhibitors of the apomorphine syndrome in the rat. Similar to remoxipride but in contrast to haloperidol, some of the substituted salicylamides show a 10-20-fold separation between the dose that inhibits hyperactivity and that which inhibits stereotypy. It was concluded that, besides the requirement of a lipophilic substituent in the position para to the methoxy group for antidopamine activity in vivo, the formation of a coplanar six-membered pseudoring involving the amide moiety and the methoxy group is a structural requirement for activity in vitro.
BOBELDIJK, M.;VERHOEFF, N. P. L. G.;VEKEMANS, J. A. J. M.;BUCK, H. M.;VAN+, J. LABELL. COMPOUNDS AND RADIOPHARM., 28,(1990) N1, C. 1247-1256
作者:BOBELDIJK, M.、VERHOEFF, N. P. L. G.、VEKEMANS, J. A. J. M.、BUCK, H. M.、VAN+
DOI:——
日期:——
PAULIS, T. DE;KUMAR, YATENDRA;JOHANSSON, L.;RAEMSBY, S.;FLORVALL, L.;HALL+, J. MED. CHEM., 1985, 28, N 9, 1263-1269
作者:PAULIS, T. DE、KUMAR, YATENDRA、JOHANSSON, L.、RAEMSBY, S.、FLORVALL, L.、HALL+