Synthesis of N-(carbonylamino)-1,2,3,6-tetrahydropyridines with analgesic, antiinflammatory, and hyperglycemic activity
作者:Jupita M. Yeung、Linda A. Corleto、Edward E. Knaus
DOI:10.1021/jm00344a020
日期:1982.2
the effects that changes in functionality at the carbonyl group have on analgesic, antiinflammatory, and hyperglycemic activities. One of the most active analgesic compounds was N-[(ethoxycarbonyl)amino]-1,2,3,6-tetrahydropyridine (5o), which was comparable to that of morphine. Pretreatment with naloxone did not alter the activity of 5o or 5q. N-[(2-Furanylcarbonyl)amino]-1,2,3,6-tetrahydropyridine (5q)
合成了一组N-(羰基氨基)-1,2,3,6-四氢吡啶,以研究羰基官能团的变化对镇痛,抗炎和高血糖活性的影响。活性最高的镇痛化合物之一是N-[(乙氧羰基)氨基] -1,2,3,6-四氢吡啶(5o),与吗啡相当。纳洛酮预处理不会改变5o或5q的活性。N-[(2-呋喃基羰基)氨基] -1,2,3,6-四氢吡啶(5q)是最有效的降血糖药,在100 mg / kg po剂量后第2和第4小时血糖升高181%。
Stereo-Controlled Asymmetric Bioreduction of α,β-Dehydroamino Acid Derivatives
作者:Clemens Stueckler、Christoph K. Winkler、Mélanie Hall、Bernhard Hauer、Melanie Bonnekessel、Klaus Zangger、Kurt Faber
DOI:10.1002/adsc.201100042
日期:2011.5.9
α,β‐Dehydroamino acidderivatives proved to be a novel substrate class for ene‐reductases from the ‘old yellow enzyme’ (OYE) family. Whereas N‐acylamino substituents were tolerated in the α‐position, β‐analogues were generally unreactive. For aspartic acidderivatives, the stereochemical outcome of the bioreduction using OYE3 could be controlled by variation of the N‐acyl protective group to furnish
Reaction of Diphenylcyclopropenethione with Pyridinium Imines
作者:J. W. Lown、K. Matsumoto
DOI:10.1139/v72-090
日期:1972.2.15
Reaction of diphenylcyclopropenethione with a variety of N-substituted pyridinium imines in refluxing benzene gives 2,4,5-trisubstituted-6H-1,3-oxazin-6-thiones in good to excellent yields. The structure of 2,4,5-triphenyl-6H-1,3-oxazin-6-thione prepared in this manner was proven by oxidation and by hydrolysis to the known 2,4,5-triphenyl-6H-1,3-oxazin-6-one. In the preparation of 4,5-diphenyl-2-ethoxy-6H-1
Synthesis of pyridine N-imine complexes of methylcobaloxime and reactions of bis(dimethylglyoximato)methyl(Pyridine N-imine)cobalt with acid anyhydrides and acetylenedicarboxylic acid dimethyl ester
作者:Yasushi Tsurita、Taro Saito、Yukiyoshi Sasaki
DOI:10.1016/s0022-328x(00)81386-8
日期:1980.12
Pyridine N-imine complexes of methylcobaloxime, CH3Co(Hdmg)2(R1— C5HnN+N−H) (n = 4; R1 = H, 2-CH3, 3-CH3, 4-CH3: n = 3; R1 = 2,6-CH3), have been synthesized by the reaction of CH3Co(Hdmg)2S(CH3)2 with a pyridine N-imine which is generated from a pyridine, hydroxylamine-O-sulfonic acid and K2CO3. The reactions of CH3Co(Hdmg)2(C5H5N+N−H) with acid anhydrides form new methylcobaloxime complexes with N-substituted
吡啶Ñ methylcobaloxime的-亚胺配合物,CH 3的Co(Hdmg)2(R 1 - Visual C 5 ħ Ñ Ñ + N - H)(Ñ = 4; R 1 = H,2-CH 3,3-CH 3, 4-CH 3:n = 3; R 1 = 2,6-CH 3),是通过CH 3 Co(Hdmg)2 S(CH 3)2与吡啶N-亚胺的反应合成的吡啶,羟胺-O-磺酸和K 2 CO 3。CH 3 Co(Hdmg)2(C 5 H 5 N + N - H)与酸酐的反应与N-取代的吡啶N-亚胺形成新的甲基钴肟配合物,CH 3 Co(Hdmg)2(C 5 H 5 N + N - R 2)R 2 = COPh,COMe,COEt)。与马来酸酐,(吡啶N生成-丙烯酰亚胺基羧酸。用乙炔二羧酸二甲酯,配体的1,3-偶极环加成得到吡唑并[1,5-a]吡啶-2,3-二羧酸二甲酯。
REACTIONS OF SUBSTITUTED PYRIDINIUM<i>N</i>-IMINES WITH BENZYNE: SYNTHESES OF PYRIDO[1,2-<i>b</i>]INDAZOLES AND RELATED COMPOUNDS
Reactions of benzyne with several pyridinium N-imines were examined. 2-o-Aminophenylpyridine derivatives 6, pyrido[1,2-b]indazoles (7), indazolo[2,3-a]quinoline (17), and indazolo[3,2-a]isoquinoline (18) were obtained by the reactions of benzyne with the corresponding ylides 5, 10, 15, and 16, respectively.