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    • 5. 发明授权
    • .beta.-Lactam antibiotics
    • β-内酰胺抗生素
    • US4438114A
    • 1984-03-20
    • US415632
    • 1982-09-07
    • Michael BobergDieter HabichKarl G. MetzgerPaul Naab
    • Michael BobergDieter HabichKarl G. MetzgerPaul Naab
    • A23L29/00A23L2/44A61K31/535A61P31/04C07D505/00C07D498/04
    • C07D505/00Y02P20/55
    • A .beta.-lactam of the formula ##STR1## or a hydrate thereof, in whichR represents a hydrogen atom or a methoxy group,n is 1 or 2,Z represents a group of the formula ##STR2## wherein R.sup.1 denotes an optionally substituted aryl group or an optionally substituted heterocyclyl group;or, when n is 1,Z can also represent an optionally substituted cycloalkyl group or an optionally substituted pseudoaromatic heterocyclic 5-membered or 6-membered ring,B represents an optionally substituted phenyl or cyclohexadienyl group, or an unsaturated optionally subtituted heterocyclic ring,T denotes an alkyl--CO--O--, pyridinium, aminopyridinium, carbamoylpyridinium or carbamoyloxy group, an --S--phenyl group which can be substituted, or an --S--Het group in which Het represents an optionally substituted heterocyclic 5-membered or 6-membered ring; andE represents a hydrogen atom, a pharmaceutically acceptable ester grouping a salt-forming cation or a protective group, or represents a negative charge when T contains a quaternary nitrogen,which possesses antibacterial activity rendering it useful as an antibiotic and animal feed supplement.
    • 其中R表示氢原子或甲氧基,其中n表示1或2,Z表示下式的基团:其中R 1,R 2,R 3, 表示任选取代的芳基或任选取代的杂环基; 或者当n为1时,Z还可以表示任选取代的环烷基或任选取代的假芳香杂环5元或6元环,B表示任选取代的苯基或环己二烯基,或不饱和任选取代的杂环,T 表示烷基-CO-O-,吡啶鎓,氨基吡啶鎓,氨基甲酰基吡啶鎓或氨基甲酰氧基,可被取代的-S-苯基或其中Het表示任选取代的杂环5元或6-元烷基的-S-Het基团, 元环 并且E表示氢原子,成盐阳离子或保护基的药学上可接受的酯基,或当T含有季氮时具有负电荷,其具有抗菌活性,使其可用作抗生素和动物饲料添加剂。
    • 10. 发明授权
    • Process for the preparation of 1,4-dihydropyridinedicarboxylic esters
    • 1,4-二氢吡啶二羧酸酯的制备方法
    • US4600778A
    • 1986-07-15
    • US591614
    • 1984-03-20
    • Werner TellerWolfgang KoebernickArthur HaafPaul NaabMichael Preiss
    • Werner TellerWolfgang KoebernickArthur HaafPaul NaabMichael Preiss
    • C07C205/56C07D211/90C07B53/00
    • C07C201/12C07D211/90
    • In the preparation of a 1,4-dihydropyridine of the formula ##STR1## in which R is a phenyl radical which is optionally substituted once or twice by nitro and/or chlorine,R.sub.1 is a C.sub.1 -C.sub.4 -alkyl radical which is optionally substituted by a C.sub.1 -C.sub.4 -alkoxy group, andR.sub.2 is a C.sub.1 -C.sub.12 -alkyl radical which is optionally substituted by a C.sub.1 -C.sub.4 -alkoxy group, a trifluoromethyl group or the radical (C.sub.6 H.sub.5 CH.sub.2) (CH.sub.3)N,by preparing an ylidene compound of the formula ##STR2## and reacting such ylidene compound with an enamine compound of the formula ##STR3## the improvement which comprises preparing the ylidene compound by reaction of a ketocarboxylic ester of the formula ##STR4## with an aldehyde of the formula RCHO, in a solvent in the presence of a catalytic amount of any acetate salt of an amine, at a temperature from about -10.degree. C. up to 100.degree. C. The products symmetrical or unsymmetrical, are produced in high yield and purity.
    • 在制备式“IMAGE”的1,4-二氢吡啶的制备中,其中R是任选被硝基和/或氯取代一次或两次的苯基,R 1是任选取代的C 1 -C 4 - 烷基 通过C 1 -C 4 - 烷氧基,并且R 2是任选地被C 1 -C 4 - 烷氧基,三氟甲基或基团(C 6 H 5 CH 2)(CH 3)N)取代的C 1 -C 12 - 烷基, 并且使该亚基化合物与式“IMAGE”或“IMAGE”的烯胺化合物反应,该改进包括通过下式的酮羧酸酯反应制备亚基化合物: 或“IMAGE”与式RCHO的醛在溶剂中,在催化量的任何乙酸盐的存在下,在约-10℃至100℃的温度下进行。产物对称或 不对称,以高产率和纯度生产。