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    • 1. 发明申请
    • IMPROVED PROCESS FOR THE PREPARATION OF (S)-ALPHA-ETYL-2-OXO-1-PYRROLIDINEACETAMIDE AND (R)-ALPHA-ETHYL-2-OXO-1-PYRROLIDINEACETAMIDE
    • (S)-ALPHA-ETYL-2-氧代-1-吡咯烷胺乙酰胺和(R)-ALPHA-乙基-2-氧代-1-吡咯烷胺乙酰胺的改进方法
    • WO2006053441A1
    • 2006-05-26
    • PCT/CA2005/001758
    • 2005-11-21
    • APOTEX PHARMACHEM INC.LI, Yuan, QiangWANG, Zhi-XianGUNTOORI, Bhaskar, Reddy
    • LI, Yuan, QiangWANG, Zhi-XianGUNTOORI, Bhaskar, Reddy
    • C07D207/277
    • C07D207/27
    • A process provided for the preparation of the (S)- and (R)- alpha- ethyl-2-oxo-1- pyrrolidineacetamide of formula:(1) from (RS)-alpha-ethyl-2-oxo-l-pyrrolidineacetic acid of formula: (2) comprising: i) combining the (RS)-2 with a chiral base (resolving agent) in a resolution solvent and crystallizing from the said mixture the diastereomeric salt of (S)- or (R)-2 and chiral base; ii) regenerating (S)- or (R)-2 from the crystallized diastereomeric salt by treating with a suitable acid or acidic ion-exchange resin; iii) optionally regenerating (R)- or (S)-2 or their mixture (predominantly one enantiomer) from the crystallization mother liquor by treating with a suitable acid or acidic ion-exchange resin; iv) optionally epimerizing (RS)-2 by treating (R)- or (S)-2 or their mixture (predominantly one enantiomer) of step iii with an acid anhydride; V) optionally converting (RS)-2 of step iv into enantiomerically enriched (S)- or (R)-2 through steps i and ii; vi) formation of the mixed anhydride by reacting (R)- or (S)-2 with an alkyl or aryl sulfonyl halogen compound RSO2X in the presence of a suitable base; and vii) reacting the mixed anhydride with ammonia; wherein R represents C 1 to C 15 alkyl or aryl groups such as methyl, ethyl, p-toluenyl, 2,4,6-trimethylbenzyl, 2,4,6-trichloribenzyl, and X represents a halogen atom such as F, Cl and Br atoms.
    • (S) - (R)-α-乙基-2-氧代-1-吡咯烷乙酰胺由(RS)-α-乙基-2-氧代-1-吡咯烷乙酸制备的(S) - 和(R)-α-乙基-2-氧代-1-吡咯烷乙酰胺 式(2)的酸包括:i)将(RS)-2与分解溶剂中的手性碱(拆分剂)组合并从所述混合物中结晶出(S) - 或(R)-2的非对映体盐 和手性基; ii)通过用合适的酸或酸性离子交换树脂处理从结晶的非对映体盐再生(S) - 或(R)-2) iii)通过用合适的酸或酸性离子交换树脂处理任选地从结晶母液中再生(R) - 或(S)-2或它们的混合物(主要是一种对映异构体) iv)通过用酸酐处理(R) - 或(S)-2或它们的步骤iii的混合物(主要是一个对映异构体)任选差向异构化(RS)-2; V)任选地通过步骤i和ii将步骤iv的(RS)-2转化成对映异构体富集的(S) - 或(R) vi)通过使(R) - 或(S)-2与烷基或芳基磺酰基卤化合物RSO 2 X在合适的碱存在下反应形成混合酸酐; 和vii)使混合酸酐与氨反应; 其中R表示C 1至C 15烷基或芳基如甲基,乙基,对甲苯基,2,4,6-三甲基苄基,2,4,6-三氯苄基,X表示卤素原子如F,Cl和 Br原子。
    • 3. 发明申请
    • PREPARATION OF CHIRAL 1,2,3,4-TETRAHYDRO-6,7-DIALKOXY-3-ISOQUINOLINECARBOXYLIC ACID AND DERIVATIVES BY REACTING LEVODOPA WITH FORMALDEHYDE OR FORMALDEHYDE PRECURSORS
    • 通过用甲醛或甲醛前体反应LEVODOPA来制备化合物1,2,3,4-四氢-6,7-二甲氧基-3-异喹啉羧酸和衍生物
    • WO2003101967A1
    • 2003-12-11
    • PCT/CA2003/000747
    • 2003-05-23
    • BRANTFORD CHEMICALS INC.WANG, Zhi-XianHORNE, Stephen, E.
    • WANG, Zhi-XianHORNE, Stephen, E.
    • C07D217/26
    • C07D217/26Y02P20/55
    • A process for preparation of (S)-1,2,3,4-tetrahydro-6,7-dialkoxy-3-isoquinolinecarboxylic acid compounds and their derivatives of the formula (1) the process compring: (i) reacting Levodopa of formula (2) with formaldehyde or formaldehyde precursors to obtain (S)-1,2,3,4-tetrahydro-6,7-dihydroxy-3-isoquinolinecarboxylic acid of formula (3); (ii) protecting the amino group of formula (3); (iii) alkylating the phenol groups of formula (4) to form compound of formula (5); and (iv) esterifying the carcoxylic acid of formula (5) and optionally removing N-protecting group wherein R 1 is hydrogen, lower alkyl, C2-C12 acyl, or R 1 O together are methylenedioxy; R 2 is hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, substituted aryl, aralkyl or substituted aralkyl group; R 3 is hydrogen, C2-C12 acyl group, benzyl, alkoxylcarbonyl group, or aralkoxyl carbonyl group; wherein P is the protecting group selected from alkoxycarbonyl, acyl, alkyl, aryl, siryl, sulfenyl and sulfonyl.
    • 制备(S)-1,2,3,4-四氢-6,7-二烷氧基-3-异喹啉羧酸化合物及其式(1)的衍生物的方法,该方法包括:(i)使式(IV)的左旋多巴 (2)与甲醛或甲醛前体反应,得到式(3)的(S)-1,2,3,4-四氢-6,7-二羟基-3-异喹啉羧酸; (ii)保护式(3)的氨基; (iii)将式(4)的酚基烷基化以形成式(5)的化合物; 和(iv)酯化式(5)的羧甲酸和任选除去其中R 1是氢的低级烷基,C 2 -C 12酰基或者R 1 O的N-保护基是亚甲二氧基; R2是氢,烷基,取代的烷基,烯基,取代的烯基,芳基,取代的芳基,芳烷基或取代的芳烷基; R3是氢,C2-C12酰基,苄基,烷氧基羰基或芳烷氧基羰基; 其中P是选自烷氧基羰基,酰基,烷基,芳基,西尔基,亚磺酰基和磺酰基的保护基。
    • 6. 发明申请
    • PROCESS FOR THE PRODUCTION OF BICALUTAMIDE
    • 生产贝他丁胺的方法
    • WO2007012183A1
    • 2007-02-01
    • PCT/CA2006/001222
    • 2006-07-25
    • APOTEX PHARMACHEM INC.WANG, Zhi-XianLI, YuanQiang
    • WANG, Zhi-XianLI, YuanQiang
    • C07C315/00A61P35/00A61K31/275C07C317/50
    • C07C319/14C07C315/02C07C317/46C07C323/60
    • A process which includes the reacting of sodium perborate with N-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)thio]-2-hydroxy- 2-methylpropanamide to form bicalutamide. Said process may comprise the reaction of N-[4-cyano-3-(trifluoromethyl)phenyl]-2- methyloxiranecarboxamide with 4-fluorobenzenethiol in the presence of a base, water and a first solvent that is water miscible to form N-[4- cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)thio]-2-hydroxy-2-methylpropanamide, and reacting the N-[4-cyano-3- (trifluoromethyl)phenyl]-3-[(4-fluorophenyl)thio]-2-hydroxy-2-methylpropanamide with sodium perborate in a second solvent. The process is efficient, inexpensive, environmentally friendly and produces bicalutamide in good yield.
    • 包括使过硼酸钠与N- [4-氰基-3-(三氟甲基)苯基] -3 - [(4-氟苯基)硫基] -2-羟基-2-甲基丙酰胺反应形成比卡鲁胺的方法。 所述方法可以包括在碱,水和第一溶剂存在下N- [4-氰基-3-(三氟甲基)苯基] -2-甲基环氧乙烷酰胺与4-氟苯硫醇的反应,该第一溶剂是水混溶以形成N- [ 4-氰基-3-(三氟甲基)苯基] -3 - [(4-氟苯基)硫代] -2-羟基-2-甲基丙酰胺,并使N- [4-氰基-3-(三氟甲基)苯基] -3 - [(4-氟苯基)硫基] -2-羟基-2-甲基丙酰胺与过硼酸钠在第二溶剂中反应。 该方法是高效,廉价,环保的,并以良好的产率生产比卡鲁胺。
    • 8. 发明申请
    • NEW PROCESSES FOR THE PREPARATION OF OPTICALLY PURE INDOLINE-2-CARBOXYLIC ACID AND N-ACETYL-INDOLINE-2-CARBOXYLIC ACID
    • 用于制备光学纯吲哚-2-羧酸和N-乙酰基 - 吲哚-2-羧酸的新工艺
    • WO2006053440A1
    • 2006-05-26
    • PCT/CA2005/001757
    • 2005-11-21
    • APOTEX PHARMACHEM INC.WANG, Zhi-XianRAHEEM, Mohammed, AbdulWEERATUNGA, Gamini
    • WANG, Zhi-XianRAHEEM, Mohammed, AbdulWEERATUNGA, Gamini
    • C07D209/42
    • C07D209/42
    • Processes for: a) separating the enantiomers of indoline-2-carboxylic acid of formula (I): comprising of: (i) combining the (R, S) indoline-2-carboxylic acid with (1S)- or (1R)-10- camphorsulfonic acid as the resolving agent in a resolution solvent and crystallizing from the said mixture the diastereomeric salt of (S)- or (R)-indoline-2-carboxylic acid with optically pure (1S)- or (1R)-10-camphorsulfonic acid; (ii) regenerating the (S)- or (R)-indoline-2-carboxylic acid from the crystallized diastereomeric salt by using a suitable base or basic ion-exchange resin; and b) for the optical resolution of N-acetyl-indoline-2-carboxylic acid of formula, (II): comprising of: (i) combining the (R, S)-N-acetyl-indoline-2-carboxylic acid with (S)- or (R)- phenylglycinol as the resolving agent in a resolution solvent and crystallizing from the said mixture the diastereomeric salt of (S)- or (R)-N-acetyl-indoline-2-carboxylic acid with optically pure phenylglycinol; (ii) regenerating the (S)- or (R)-N-acetyl-indoline-2-carboxylic acid from the crystallized salt by using a suitable acid or acidic ion-exchange resin. The non-selected enantiomer may then be racemized and the process (a) or (b) repeated thus to obtain substantial conversion of the material to one enantiomer.
    • 用于:a)分离式(I)的二氢吲哚-2-羧酸的对映异构体的方法:包括:(i)将(R,S)二氢吲哚-2-羧酸与(1S) - 或(1R) - (S) - 或(R) - 二氢吲哚-2-羧酸的非对映异构体盐与光学纯的(1S) - 或(1R)-10 - 樟脑磺酸; (ii)通过使用合适的碱或离子交换树脂从结晶的非对映体盐中再生(S) - 或(R) - 二氢吲哚-2-羧酸; 和(b)用于光学拆分式(II)的N-乙酰基 - 二氢吲哚-2-羧酸:包括:(i)将(R,S)-N-乙酰基 - 二氢吲哚-2-羧酸与 (S) - 或(R) - 苯基甘氨醇作为拆分剂,并在所述混合物中从(S) - 或(R)-N-乙酰基 - 二氢吲哚-2-羧酸的非对映体盐与光学纯化 苯甘; (ii)使用合适的酸或酸性离子交换树脂从结晶盐中再生(S) - 或(R)-N-乙酰基 - 二氢吲哚-2-羧酸。 然后可以将未选择的对映异构体进行外消旋化,然后重复方法(a)或(b),以获得材料到一种对映异构体的显着转化。