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    • 14. 发明申请
    • Processes for the preparation of imidazo[1,2-a] pyridine derivatives
    • 咪唑并[1,2-a]吡啶衍生物的制备方法
    • US20060084806A1
    • 2006-04-20
    • US11186662
    • 2005-07-21
    • Ramasubramanian SridharanShekhar BhirudVandanapu Purushotham
    • Ramasubramanian SridharanShekhar BhirudVandanapu Purushotham
    • C07D471/02
    • C07D471/04
    • A process for the preparation of imidazo[1,2-a]pyridine derivatives of the formula I: wherein R is hydrogen, halogen or a C1-C4 alkyl group; R1 and R2 are independently hydrogen, a straight or branched C1-C6 alkyl group which is unsubstituted or substituted by one or more halogen atoms, hydroxyl, N(C1-C4 alkyl)2, carbamoyl or C1-C4 alkoxy radicals, a C1-C6 alkyl hydroxy group, a C3-C6 cycloalkyl radical, a benzyl radical, a phenyl radical or R1 and R2 together with the nitrogen atom to which they are bonded are joined together to form a substituted or unsubstituted heterocyclic group optionally containing one or more additional heterocyclic atoms; and R3 and R4 are independently hydrogen, halogen or a C1-C4 alkyl group, or a pharmaceutically acceptable salt thereof, the process comprising (a) reacting an imidazo[1,2-a]pyridine carboxylic acid of the formula II wherein R, R3 and R4 have the aforestated meanings with a halogenating agent in the absence of a solvent to form an acid halide intermediate and (b) reacting the acid halide intermediate with an amine of the formula HNR1R2 wherein R1 and R2 have the aforestated meanings to form the compound of formula I.
    • 制备式I的咪唑并[1,2-a]吡啶衍生物的方法:其中R是氢,卤素或C 1 -C 4烷基 ; R 1和R 2独立地是氢,直链或支链C 1 -C 6烷基,其是 未被取代或被一个或多个卤素原子取代,羟基,N(C 1 -C 4烷基)亚烷基,氨基甲酰基或C 1 -C 6烷基, C 1 -C 4烷氧基,C 1 -C 6烷基羟基,C 3 -C 6烷基羟基,C 1 -C 6烷基羟基, C 1 -C 6环烷基,苄基,苯基或R 1和R 2与它们的氮原子一起 被结合在一起形成任选含有一个或多个另外的杂环原子的取代或未取代的杂环基; 和R 3和R 4独立地是氢,卤素或C 1 -C 4烷基,或 该方法包括(a)使式II的咪唑并[1,2-a]吡啶羧酸反应,其中R 3,R 3和R 4, >在没有溶剂的情况下具有卤化剂的上述含义,以形成酰卤中间体,和(b)使酰卤中间体与式HNR 1 R 2的胺反应 其中R 1和R 2具有上述含义以形成式I化合物。
    • 16. 发明申请
    • Process for the preparation of angiotensin receptor blockers and intermediates thereof
    • 制备血管紧张素受体阻滞剂及其中间体的方法
    • US20060211866A1
    • 2006-09-21
    • US11386010
    • 2006-03-21
    • Narendra JoshiKodali RaoBuddhavarapu RamamShekhar Bhirud
    • Narendra JoshiKodali RaoBuddhavarapu RamamShekhar Bhirud
    • C07D403/02C07D235/04
    • C07D257/04C07D235/20C07D403/10
    • A process for the preparation of a biphenyl-containing compound of general formula I: wherein R1 is a C3-6 carbonyl containing compound; R2 is a substituted or unsubstituted, straight or branched C3-6 alkyl group, or R1 and R2 together with the nitrogen atom to which they are bonded are joined together to form a substituted heterocyclic group selected from the group consisting of substituted or unsubstituted imidazoles, substituted or unsubstituted benzimidazoles and substituted or unsubstituted 1,3-diazaspiro[4,4]non-1-en-4-one; and R3 is a carboxylic acid ester, cyano, a substituted or unsubstituted 1H-tetrazolyl group or a substituted or unsubstituted group which may be converted in vivo into a carboxy group is provided, the process comprising reacting a compound of general formula II: wherein R1 and R2 have the aforestated meanings with a compound of general formula III: wherein Z is a leaving group and R3 has the aforestated meaning in a biphasic solvent system in the presence of a phase transfer catalyst.
    • 一种制备含联苯的通式I化合物的方法:其中R 1是含3-6个碳原子的化合物; R 2是取代或未取代的直链或支链C 3-6 - 烷基,或R 1和R 2, SUP与它们所键合的氮原子一起连接在一起形成选自取代或未取代的咪唑,取代或未取代的苯并咪唑和取代或未取代的1,3-二氮杂螺[4,4] 非1-烯-4-酮; R 3是可以在体内转化为羧基的羧酸酯,氰基,取代或未取代的1H-四唑基或取代或未取代的基团,该方法包括使 通式II的化合物:其中R 1和R 2具有通式III的化合物的前述含义:其中Z是离去基团,R 3 在相转移催化剂存在下,在双相溶剂体系中具有上述含义。
    • 18. 发明申请
    • Process for the preparation of carboxamide compounds
    • 制备羧酰胺化合物的方法
    • US20050203297A1
    • 2005-09-15
    • US11077723
    • 2005-03-11
    • Bobba SivakumarShekhar BhirudChandrasekhar BatchuSanjay Kale
    • Bobba SivakumarShekhar BhirudChandrasekhar BatchuSanjay Kale
    • C07D223/18
    • C07D223/28C07D223/26
    • A process for preparing 5H-dibenz[b,f]azepine-5-carboxamide of the general formula: wherein R1, R2, R3 and R4 are the same or different and can be hydrogen, halogen, nitro, cyano, carboxyl, R, —CO(R), —OCO(R), —O(R), —N(R)2, —CON(R)2, and —COO(R), wherein R is selected from the group consisting of C1-C10 alkyl, C3-C10 cycloalkyl, C2-C10 alkenyl, C5-C10 cycloalkenyl, C2-C10 alkynyl, and C6-C20 aryl, wherein the two A groups of —N(A)2 and —CON(A)2 can be the same or different, and wherein R2 and R3 can together form a bond is provided; the process comprising reacting 5H-dibenz[b,f]azepine of the general formula wherein R1, R2, R3 and R4 have the aforementioned meanings, with one or more alkali or alkaline-earth cyanates and in the presence of one or more unsaturated dicarboxylic acids.
    • 制备通式如下的5H-二苯并[b,f]吖庚因-5-甲酰胺的方法:其中R 1,R 2,R 3, (R),-O(R), - OCO(R),-O(R), -N(R)2,-CON(R)2,和-COO(R),其中R选自C 1〜 C 1 -C 10烷基,C 3 -C 10环烷基,C 2 -C 10烷基,C 1 -C 10烷基, 10个亚烷基,C 5 -C 10环烯基,C 2 -C 10炔基,以及 C 6 -C 20芳基,其中-N(A)2和-CON(A)2的两个A基团 可以相同或不同,并且其中R 2和R 3可以一起形成键; 该方法包括使通式为的5H-二苯并[b,f]吖庚因其中R 1,R 2,R 3,R 3和R 3, 具有上述含义,具有一种或多种碱金属或碱土氰酸盐,并且在一种或多种不饱和二羧酸存在下。
    • 19. 发明申请
    • Process for the preparation of sulfamate derivatives
    • 制备氨基磺酸酯衍生物的方法
    • US20050203287A1
    • 2005-09-15
    • US11077722
    • 2005-03-11
    • Chandrasekhar BatchuBiju Kumar PillaiShekhar Bhirud
    • Chandrasekhar BatchuBiju Kumar PillaiShekhar Bhirud
    • C07D317/44C07H5/06
    • C07H9/04C07D317/44C07H11/00
    • An improved process for the preparation of sulfamate derivatives such as topiramate is provided comprising (a) reacting an alcohol with sulfuryl chloride in the presence of an amine base and in a first halogenated hydrocarbon solvent selected from the group consisting of aliphatic halogenated hydrocarbon solvents having 1 to 12 carbon atoms and at least three halogen atoms, aliphatic halogenated hydrocarbon solvents having 2 to 12 carbon atoms and less than three halogen atoms, aromatic halogenated hydrocarbon solvents having 6 to 18 carbon atoms and mixtures thereof to produce a chlorosulfate intermediate and (b) reacting the chlorosulfate intermediate with an amine of the formula R1NH2, wherein R1 is hydrogen or an alkyl from 1 to 4 carbon atoms, in a second halogenated hydrocarbon solvent selected from the group consisting of aliphatic halogenated hydrocarbon solvents having 1 to 12 carbon atoms and at least three halogen atoms, aliphatic halogenated hydrocarbon solvents having 2 to 12 carbon atoms and less than three halogen atoms, aromatic halogenated hydrocarbon solvents having 6 to 18 carbon atoms and mixtures thereof.
    • 提供了一种制备氨基磺酸酯衍生物如托吡酯的改进方法,其包括(a)在胺碱存在下使醇与磺酰氯反应,并且在选自脂族卤代烃溶剂的第一卤代烃溶剂中具有1 至12个碳原子和至少三个卤素原子,具有2至12个碳原子和少于3个卤素原子的脂族卤代烃溶剂,具有6至18个碳原子的芳族卤代烃溶剂及其混合物,以产生氯代硫酸盐中间体和(b) 使氯代硫酸盐中间体与式R 1 NH 2的胺反应,其中R 1是氢或1至4个碳原子的烷基 在选自具有1至12个碳原子和至少3个卤素原子的脂族卤代烃溶剂的第二卤代烃溶剂中,脂族卤代 具有2至12个碳原子和少于3个卤素原子的烃溶剂,具有6至18个碳原子的芳族卤代烃溶剂及其混合物。