Synthesis and Properties of C,N-Chelated Carbene Complexes of Palladium(II) with 2-Aminobenzo[d]thiazole Fragment
摘要:
The reaction of bis(cyclohexylisocyanide) complex of Pd(II) with substituted benzo[d]thiazole-2-amines in the presence of triethanolamine as the base has lead to the formation of deprotonated C,N-chelated carbene complexes with a structure similar to that described previously for the products of the reaction with unsubstituted benzo[d]thiazole-2-amine. The complexes have been isolated and characterized using high-resolution mass spectrometry, IR and NMR spectroscopy (H-1, C-13{H-1}, H-1-H-1 COSY, H-1-H-1 NOESY, H-1-C-13 HSQC, H-1-C-13 HMBC). The resulting complexes have exhibited moderate antibacterial activity against sensitive strains of gram-negative bacteria E. coli (C600) and P. fluorescens (P218), gram-positive bacteria S. aureus (ATCC-25923) and B. subtillis (B-3142D) as well as fungi C. albicans (401/NCTC-885-653).
The synthesis of some 4<i>H</i>-pyrimido[2,1-<i>b</i>]benzothiazol-4-ones
作者:Robert J. Alaimo
DOI:10.1002/jhet.5570100515
日期:1973.10
A series of 8-substituted and 7,8-disubstituted-4-oxo-3-(4H-pyrimido[2,1-b]benzothiazole)carboxylic acids and esters including a 9-aza analog were synthesized from substituted 2-aminobenzothiazoles and diethyl ethoxymethylenemalonate. The 9-aza analog, ethyl 8-methoxy-4-oxo-3-(4H-pyrido[3′,2′:4,5]thiazolo[3,2-a]pyrimidine)carboxylate (56), represents the first preparation of this new heterocyclic ring
由取代的2-氨基苯并噻唑合成了一系列的8-取代和7,8-二取代-4-氧代-3-(4 H-嘧啶[ 2,1- b ]苯并噻唑)羧酸和酯,包括9-氮杂类似物。和乙氧基亚甲基丙二酸二乙酯。9-氮杂类似物,乙基8-甲氧基-4-氧代-3-(4 H-吡啶基[3',2':4,5]噻唑并[3,2- a ]嘧啶)羧酸盐(56)首先准备这个新的杂环。检查了这些化合物的抗寄生虫活性,但是未检测到显着活性。
Heterocyclic Compounds Which Modulate The CB2 Receptor
申请人:Bartolozzi Alessandra
公开号:US20110312944A1
公开(公告)日:2011-12-22
Compounds which modulate the CB2 receptor are disclosed. Compounds according to the invention bind to and are agonists of the CB2 receptor, and are useful for treating inflammation. Those compounds which are agonists are additionally useful for treating pain.