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    • 1. 发明授权
    • Preparation of 7-substituted amino-desacetoxycephalosporanic acid
compounds
    • 7-取代氨基 - 脱乙酰氧基头孢烷酸化合物的制备
    • US4035352A
    • 1977-07-12
    • US575024
    • 1975-05-06
    • Jan VerweijHong Sheng TanHermanus Jacobus Kooreman
    • Jan VerweijHong Sheng TanHermanus Jacobus Kooreman
    • C07D499/00C07D501/10C07D499/32
    • C07D501/10C07D499/00
    • Novel 6-substituted amino-penicillanic acid anhydrides useful in the process for the preparation of 7-substituted amino-desacetoxycephalosporanic derivatives comprising converting a 6-substituted amino-penicillanic acid sulfoxide into an anhydride of a 6-substituted amino-penicillanic acid sulfoxide, heating the said acid anhydride intermediate at a temperature up to at most 160.degree. C in a dry inert organic solvent with an anhydrous acid which is capable of causing ring expansion of the penam ring to a .DELTA..sup.3 -cephem ring, in the presence of a silicon-containing compound capable of (a) removing water formed during the ring enlargement of the penam structure fast enough to prevent water hydrolysis of the acid anhydride moiety present and (b) forming neutral or basic products on hydrolysis, the aforesaid acid being strong enough not to be, or not to a substantial extent to be, silylated under the reaction conditions employed, and hydrolyzing the resulting compound in situ to form the .DELTA..sup.3 -7-substituted amino-desacetoxycephalosporanic acid as such or as a salt, such as alkali metal, alkaline earth metal or amine salt.
    • 用于制备7-取代氨基 - 脱乙酰氧基头孢烷衍生物的方法中的6-取代氨基 - 青霉烷酸酐包括将6-取代氨基 - 青霉烷酸亚砜转化成6-取代氨基 - 青霉烷酸亚砜的酸酐,加热 所述酸酐中间体在干燥的惰性有机溶剂中在至多160℃的温度下与无水酸反应,所述无水酸在硅的存在下能够引起环吡嗪环向DELTA 3-头孢烯环的扩展 能够(a)在Penam结构的环扩大期间形成的水快速去除以防止存在的酸酐部分的水解,和(b)在水解时形成中性或碱性产物,上述酸不足够 在所使用的反应条件下是或不在很大程度上甲硅烷基化,并原位水解所得化合物以形成DEL TA 3-7取代的氨基 - 脱乙酰氧基头孢烷酸,或作为盐,如碱金属,碱土金属或胺盐。
    • 2. 发明授权
    • Process for preparing cephalosporin derivatives
    • 制备头孢菌素衍生物的方法
    • US4046761A
    • 1977-09-06
    • US664056
    • 1976-03-04
    • Jan VerweijHong Sheng Tan
    • Jan VerweijHong Sheng Tan
    • C07D207/46C07D209/48C07D501/10C07D501/02A61K31/545
    • C07D209/48C07D207/46
    • Novel azetidine derivatives of the formula ##STR1## wherein R.sub.1 is an acylamido group, R.sub.2 is selected from the group consisting of ##STR2## wherein R.sub.4, R.sub.5 and R.sub.6 are individually selected from the group consisting of hydrogen, lower alkyl and lower alkenyl, n is 2 or 3 and -- in the case when formula IIB is a phenyl -- this group may carry 1 to 4 substituents selected from the group consisting of halogen, lower alkyl, lower alkenyl and phenyl, and R.sub.3 is lower alkyl optionally substituted with 1 or 2 phenyls which phenyl groups may be substituted with nitro and a process for their preparation and process for the preparation of cephalosporanic acid derivatives using the azetidines of formula I as intermediates.This is a division of Serial No. 547,948, filed Feb. 7, 1975 now Pat. No. 4,007,202.
    • 新颖的式Ⅰa的氮杂环丁烷衍生物,其中R1是酰氨基,R2选自由下列组成的组:其中R 4,R 5和R 6分别选自氢,低级 烷基和低级烯基,n为2或3, - 在式IIB为苯基的情况下,该基团可以携带1至4个选自卤素,低级烷基,低级烯基和苯基的取代基,且R3较低 任选被1或2个苯基取代的烷基,该苯基可以被硝基取代,其制备方法和使用式I的氮杂环丁烷作为中间体制备头孢烷酸衍生物的方法。
    • 3. 发明授权
    • Preparation of 7-substituted amino-desacetoxycephalosporanic acid
compounds
    • 7-取代氨基 - 脱乙酰氧基头孢烷酸化合物的制备
    • US4003894A
    • 1977-01-18
    • US574365
    • 1975-05-05
    • Jan VerweijHong Sheng TanHermanus Jacobus Kooreman
    • Jan VerweijHong Sheng TanHermanus Jacobus Kooreman
    • C07D501/10
    • C07D501/10
    • Process for the preparation of 7-substituted amino-desacetoxycephalosporanic derivatives comprising converting a 6-substituted amino-penicillanic acid sulfoxide into an anhydride of a 6-substituted amino-penicillanic acid sulfoxide, heating the said acid anhydride intermediate at a temperature up to at most 160.degree. C in a dry inert organic solvent with an anhydrous acid which is capable of causing ring expansion of the penam ring to a .DELTA..sup.3 -cephem ring, in the presence of a silicon-containing compound capable of (a) removing water formed during the ring enlargement of the penam structure fast enough to prevent water hydrolysis of the acid anhydride moiety present and (b) forming neutral or basic products on hydrolysis, the aforesaid acid being strong enough not to be, or not to a substantial extent to be, silylated under the reaction conditions employed, and hydrolyzing the resulting compound in situ to form the .DELTA..sup.3 -7-substituted amino-desacetoxycephalosporanic acid as such or as a salt, such as alkali metal, alkaline earth metal or amine salt and to the novel sulfoxide acid anhydrides formed therein.
    • 用于制备7-取代的氨基 - 脱乙酰氧基头孢烷衍生物的方法,包括将6-取代的氨基 - 青霉烷酸亚砜转化为6-取代的氨基 - 青霉烷酸亚砜的酸酐,将所述酸酐中间体加热至多至多 160℃在干燥惰性有机溶剂中与无水酸反应,该无水酸能够在含硅化合物的存在下使Penam环环化为DELTA 3-头孢烯环,所述含硅化合物能够(a)除去在 阳离子结构的环扩大足够快以防止存在的酸酐部分的水解,和(b)在水解时形成中性或碱性产物,上述酸足够强,不大或不在很大程度上是 在所用的反应条件下甲硅烷基化,并原位水解所得化合物,形成DELTA 3-7-取代的氨基 - 脱乙酰氧基头孢烷酸,或者如 盐,如碱金属,碱土金属或胺盐,以及其中形成的新的亚砜酸酐。
    • 4. 发明授权
    • Azetidine derivatives
    • 氮杂环丁烷衍生物
    • US4007202A
    • 1977-02-08
    • US547948
    • 1975-02-07
    • Jan VerweijHong Sheng Tan
    • Jan VerweijHong Sheng Tan
    • C07D205/08A61K31/545C07D201/02C07D205/095C07D207/46C07D209/48C07D401/12C07D403/12C07D501/08C07D501/10C07D501/30C07D501/60C07D207/12
    • C07D209/48C07D207/46
    • Novel azetidine derivatives of the formula ##STR1## wherein R.sub.1 is an acylamido group, R.sub.2 is selected from the group consisting of ##STR2## wherein R.sub.4, R.sub.5 and R.sub.6 are individually selected from the group consisting of hydrogen, lower alkyl and lower alkenyl, n is 2 or 3 and -- in the case when formula IIB is a phenyl - this group may carry one to four substituents selected from the group consisting of halogen, lower alkyl, lower alkenyl and phenyl, and R.sub.3 is lower alkyl optionally substituted with 1 or 2 phenyls which phenyl groups may be substituted with nitro and the dotted lines of formula IIB indicate the optional presence of double bonds and a process for their preparation and process for the preparation of cephalosporanic acid derivatives using the azetidines of formula I as intermediates.
    • 新颖的式Ⅰa的氮杂环丁烷衍生物,其中R 1是酰氨基,R 2选自其中R 4,R 5和R 6各自独立地选自下列的组合:IIA IIB IIC IID 由氢,低级烷基和低级烯基组成的组,n为2或3, - 在式IIB为苯基的情况下,该基团可以携带一至四个选自以下的取代基:卤素,低级烷基,低级 烯基和苯基,R3是任选被1或2个苯基取代的低级烷基,该苯基可以被硝基取代,式IIB的虚线表示双键的任选存在,以及它们的制备方法和制备方法 使用式I的氮杂环丁烷的头孢烷酸衍生物作为中间体。
    • 7. 发明授权
    • Acetidine derivatives
    • 维生素D衍生物
    • US3962277A
    • 1976-06-08
    • US619843
    • 1975-10-06
    • Jan VerweyHong Sheng Tan
    • Jan VerweyHong Sheng Tan
    • C07D209/34C07D501/10
    • C07D501/10
    • A new azetidine derivative of the formula: ##EQU1## wherein R.sub.1 represents a penicillin- or cephalosporin-amido group, R.sub.2 represents one of the groups of the following formulae: ##EQU2## wherein R.sub.4, R.sub.5 and R.sub.6 are the same or different and each represents a hydrogen atom or a lower alkyl or alkenyl group, n represents 2 or 3 and - in case formula IIB represents a phenyl group - this group may carry one to four further substituents selected from the group consisting of halogen atoms and lower alkyl, lower alkenyl and phenyl groups,R.sub.3 represents an amino group of the formula ##EQU3## wherein R.sub.7 represents a hydrogen atom or a lower alkyl group and R.sub.8 represents a lower alkyl group, orR.sub.3 represents a N,N'-disubstituted hydrazino group wherein the substituents are lower alkyl groups, e.g. the N,N'-diisopropylhydrazino group, orR.sub.3 represents the group --OR.sub.9, wherein R.sub.9 represents a hydrogen atom, a lower alkyl group, which group may be substituted by 1 to 3 halogen atoms or by 1 or 2 phenyl groups, werein the phenyl groups may be substituted by a methoxy or a nitro group, or R.sub.9 represents a phenacyl group or a salt-forming cation,And corresponding azetidine derivatives of formula I wherein the double bond in the propenyl side chain has been shifted from the 2- to the 1-position, which are versatile intermediates in the process of preparing cephalosporanic and penicillanic derivative.
    • 10. 发明授权
    • Azetidine derivatives
    • 氮杂环丁烷衍生物
    • US3966738A
    • 1976-06-29
    • US440725
    • 1974-02-08
    • Jan VerweyHong Sheng Tan
    • Jan VerweyHong Sheng Tan
    • C07D205/08C07D205/095C07D401/12C07D403/12C07D499/04C07D501/08C07D501/10C07F7/18C07D207/24
    • C07D501/10C07D205/095C07F7/1896
    • New azetidine derivatives of the formula: ##EQU1## wherein R.sub.1 represents a penicillin- or cephalosporin-amido group, R.sub.2 represents one of the groups of the following formulae: ##EQU2## wherein R.sub.4, R.sub.5 and R.sub.6 are the same or different and each represents a hydrogen atom or a lower alkyl or alkenyl group, n represents 2 or 3 and - in case formula IIB represents a phenyl group - this group may carry one to four further substituents selected from the group consisting of halogen atoms and lower alkyl, lower alkenyl and phenyl groups, R.sub.3 represents an amino group of the formula ##EQU3## wherein R.sub.7 represents a hydrogen atom or a lower alkyl group and R.sub.8 represents a lower alkyl group, or R.sub.3 represents a N,N'-disubstituted hydrazino group wherein the substituents are lower alkyl groups, e.g. the N,N'-diisopropylhydrazino group, or R.sub.3 represents the group -OR.sub.9, wherein R.sub.9 represents a hydrogen atom, a lower alkyl group, which group may be substituted by 1 to 3 halogen atoms or by 1 or 2 phenyl groups, wherein the phenyl groups may be substituted by a methoxy or a nitro group, or R.sub.9 represents a phenacyl group or a salt-forming cation, and corresponding azetidine derivatives of formula 1 wherein the double bond in the propenyl side chain has been shifted from the 2- to the 1-position, which are versatile intermediates in the process of preparing cephalosporanic and penicillanic derivatives.
    • 新的氮杂环丁烷衍生物,其结构式如下:其中R1代表青霉素或头孢菌素 - 酰氨基,其中R1代表青霉素或头孢菌素 - 酰氨基,其中R1代表青霉素或头孢菌素 - 酰胺基,其中R1代表青霉素或头孢菌素 - 酰胺基, R 2表示以下基团之一:R4 C R4R6 R4OR6 | ANGLE || | PARALLEL | | -CC || | PARALLEL | -C- | PARALLEL -CN- -CCN- | -CC | | | ANGLE | | R5 C R5 R5 n IIA IIB IIC IID其中R4,R5和R6相同或不同,各自表示氢原子或低级烷基或烯基,n表示2或3,并且 - 在式IIB表示苯基的情况下, 该基团可以携带一至四个选自卤素原子和低级烷基,低级烯基和苯基的取代基,R3表示式R7-ANGLE R8的氨基,其中R7表示氢原子或低级烷基 基团,R 8表示低级烷基,或R 3表示N,N'-二取代肼基 取代基是低级烷基,例如 N,N'-二异丙基肼基或R 3表示-OR 9基团,其中R 9表示氢原子,低级烷基,该基团可被1至3个卤素原子取代或被1或2个苯基取代,其中 苯基可以被甲氧基或硝基取代,或R9表示苯甲酰基或成盐阳离子,以及相应的式1的氮杂环丁烷衍生物,其中丙烯基侧链中的双键已经从2-位移到 1位,它是制备头孢菌素和青霉烷衍生物过程中的多功能中间体。