Tetrazole derivatives, and anti-ulcer composition containing the same
申请人:Otsuka Pharmaceutical Company, Limited
公开号:US04372953A1
公开(公告)日:1983-02-08
Tetrazole derivatives of the formula: ##STR1## wherein R.sup.1 is a lower alkykl, phenyl or a group of the formula: --S(O).sub.l --A--(X).sub.m --R.sup.3, and R.sup.2 is hydrogen, a lower alkyl, phenyl or a cycloalkyl when R.sup.1 is the group --S(O).sub.l --A--(X).sub.m --R.sup.3, or R.sup.2 is a group of the formula: --B--CO--R.sup.4 when R.sup.1 is a lower alkyl or phenyl and a pharmaceutically acceptable salt thereof, which have prophylactic or therapeutic activities against peptic and/or duodenal ulcers and are useful as an anti-ulcer drug; processes for the preparation of the tetrazole derivatives; and pharmaceutical composition containing said tetrazole derivatives.
Structure-based design of haloperidol analogues as inhibitors of acetyltransferase Eis from <i>Mycobacterium tuberculosis</i> to overcome kanamycin resistance
作者:Ankita Punetha、Keith D. Green、Atefeh Garzan、Nishad Thamban Chandrika、Melisa J. Willby、Allan H. Pang、Caixia Hou、Selina Y. L. Holbrook、Kyle Krieger、James E. Posey、Tanya Parish、Oleg V. Tsodikov、Sylvie Garneau-Tsodikova
DOI:10.1039/d1md00239b
日期:——
structure of the Eis-haloperidol (1) complex, which guided synthesis of 34 analogues. The structure–activity relationship study showed that in addition to haloperidol (1), eight analogues, some of which were smaller than 1, potently inhibited Eis (IC50 ≤ 1 μM). Crystal structures of Eis in complexes with three potent analogues and droperidol (DPD), an antiemetic and antipsychotic, were determined. Three
结核病 (TB) 由结核分枝杆菌( Mtb ) 引起,是一种致命的细菌性疾病。Mtb的耐药菌株使根除结核病成为一项艰巨的任务。Mtb过度表达增强的细胞内存活 (Eis) 蛋白赋予了对二线抗生素卡那霉素 (KAN) 的抗性。Eis 是一种乙酰转移酶,可将 KAN 乙酰化,使其抗菌功能失活。开发 Eis 抑制剂作为 KAN 辅助治疗剂是预防和克服 KAN 耐药性的一条有吸引力的途径。我们发现抗精神病药物氟哌啶醇 (HPD, 1 ) 是一种有效的 Eis 抑制剂,IC 50= 0.39 ± 0.08 μM。我们确定了 Eis-氟哌啶醇 ( 1 ) 复合物的晶体结构,该复合物指导了 34 种类似物的合成。构效关系研究表明,除氟哌啶醇 ( 1 ) 外,还有 8 种类似物,其中一些小于1,可有效抑制 Eis (IC 50 ≤ 1 μM)。确定了 Eis 与三种强效类似物和氟哌利多 (DPD)(一种
SELECTIVE PREPARATION OF OXACYCLIC AND LINEAR PHOSPHONATES AND THE EFFECT OF DIETHYL PHOSPHONATE GROUP ON SPECTROSCOPIC DETERMINATION OF THE STRUCTURES
作者:Jen-Wen Yu、Steve K. Huang
DOI:10.1080/10426509708031600
日期:1997.12.1
of oxacyclic phosphonate, with little effect from the phenyl and p-substituted phenyl groups. The phosphonategroup with two ethoxy groups hovered over the THF-ring, thus presenting a complex 1H & 13C NMR spectra. The results indicated that the phenyl group stretched out and away from the THF-ring, thus exerting little electronic influence on the oxacyclic ring. For linear phosphonate 3, McLafferty
摘要 描述了通过交替单一方法的合成条件形成氧杂环或线性膦酸酯。使用 IR、MS、1H 和 13C NMR 对这两种异构的氧杂环和线性膦酸酯 2 和 3 进行结构鉴定。1H 和 13C NMR 光谱数据(即化学位移和偶联常数)表明,膦酸酯基团是氧杂环膦酸酯构象的主要因素,苯基和对取代苯基的影响很小。具有两个乙氧基的膦酸酯基团悬停在 THF 环上,从而呈现复杂的 1H 和 13C NMR 光谱。结果表明,苯基伸出并远离 THF 环,因此对氧杂环的电子影响很小。对于线性膦酸酯 3,在质量碎片中观察到具有 C = O 和 P = O 基团的 McLafferty 重排。光谱数据提供了鉴定这些膦酸盐的信息。
SUBSTITUENT EFFECTS ON PHOSPHONATION OF γ-CHLOROPROPYL ARYL KETONES WITH TRIETHYL PHOSPHITE
作者:Jen-Wen Yu、Chung-Chieh Shih、Steve K. Huang
DOI:10.1080/10426509708031601
日期:1997.12.1
Abstract Phosphonation of γ-chloropropyl aryl ketones 1 with triethyl phosphite yielded oxycyclopentyl phosphonates 2 and γ-ketophosphonates 3. Formation of 2 was greatly facilitated by the presence of electron-releasing p-substituents on the phenyl group, particularly the methoxy group, which may delocalize the electrons of the methoxy oxygen towards carbonyl oxygen through resonance effect. The linear
Intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives
申请人:Aventisub II Inc.
公开号:EP2261208A1
公开(公告)日:2010-12-15
The present invention is related to novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of formula (I) wherein W represents -C(=O)- or -CH(OH)-; R1 represents hydrogen or hydroxy; R2 represents hydrogen; R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R2; n is an integer of from 1 to 5; m is an integer 0 or 1; R3 is -COOH or -COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched; each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R1 and R2 are taken together to form a second bond between the carbon atoms bearing R1 and R2 or where R1 represented hydroxy, m is an integer 0.