会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 16. 发明申请
    • A METHOD FOR THE PRODUCTION OF THE HEMI-CALCIUM SALT OF (E)-7-[4-(4-FLUOROPHENYL)-6-ISOPROPYL-2-[METHYL(METHYLSULFONYL)AMINO]PYRIMIDIN-5-YL](3R,5S)-3,5-DIHYDROXYHEPT-6-ENOIC ACID
    • (E)-7- [4-(4-氟苯基)-6-异丙基-2- [甲基(甲基磺酰基)氨基]嘧啶-5-基](3R,5S)的硫酸钙的生产方法 )-3,5-二羟基庚-6-烯酸
    • WO2007000121A1
    • 2007-01-04
    • PCT/CZ2006/000039
    • 2006-06-08
    • ZENTIVA, a.s.RADL, StanislavSTACH, JanKLVANA, RobertJIRMAN, Josef
    • RADL, StanislavSTACH, JanKLVANA, RobertJIRMAN, Josef
    • C07D239/42A61K31/505
    • C07D239/42Y02P20/55
    • A method of producing the hemi-calcium salt of rosuvastatin, i.e. of ( E )-7-[4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl](3 R ,5 S )-3,5-dihydroxyhept-6-enoic acid of formula (I), in the crystalline or amorphous solid state, wherein a) the lactone of formula (IV), or ester or amid of general formulae (V) or (XIII), wherein X is either oxygen or amino group, R 1 CR 2 is a protecting group, wherein R 1 and R 2 are preferably selected from C 1 to C 3 alkyls, and R is an alkyl selected from C 1 to C 10 alkyls, preferably methyl, ethyl or tert-butyl, after removing the protecting group in the case of the compound of formula (V), ia converted, by alkaline hydrolysis with an alkali metal or Ca 2+ base, into a salt of rosuvastatin, b) in the case that an alkali metal base was used in step (a), the resulting alkali salt of rosuvastatin is converted into the calcium salt of rosuvastatin by reaction with a calcium salt in aqueous environment, c) crude calcium salt of rosuvastatin of formula (I) is extracted into a solvent partially miscible with water selected from the group including R 1 COOR 2 , R 1 COR 2 , or R 1 OH, wherein R 1 and R 2 independently mean hydrogen or a residue of a C 1 to C 10 aliphatic hydrocarbon, C 6 aromatic hydrocarbon, C 5 or C 6 cyclic hydrocarbon, or a combination of an aliphatic and aromatic or cyclic hydrocarbon, d) the solution of the calcium salt of rosuvastatin prepared according to step (c) is further washed with water, and e) the product of formula (I) is isolated by cooling the solution and filtration, or by adding an anti-solvent and filtration, or by spraying into the stream of an inert gas.
    • (E)-7- [4-(4-氟苯基)-6-异丙基-2- [甲基(甲基磺酰基)氨基]嘧啶-5-基](3R)的半舒康的半钙盐的制备方法 ,式(I)的5S)-3,5-二羟基庚-6-烯酸,其结构或无定形固态,其中a)式(Ⅳ)的内酯,或通式(Ⅴ)或 (XIII),其中X为氧或氨基,R 1为CR 2为保护基,其中R 1和R 2为 > 2优选选自C 1至C 3烷基,R是选自C 1至C 3烷基的烷基, 在式(V)化合物的情况下除去保护基后,通过碱金属或碱金属碱性水解转化,优选甲基,乙基或叔丁基,优选甲基,乙基或叔丁基, 2 +底物转化为罗苏伐他汀的盐,b)在步骤(a)中使用碱金属碱的情况下,将所得的瑞舒伐他汀碱盐转化为罗苏伐他汀的钙盐 他汀类药物通过在水性环境中与钙盐反应,c)式(I)的瑞舒伐他汀的粗钙盐被萃取到与选自以下的水部分混溶的溶剂中:R< 2,R 1,R 2,或R 1 OH,其中R 1和R 2, SUP> 2独立地表示氢或C 1至C 10脂族烃,C 6芳烃,C 5或C 6环状烃,或脂族和芳族或环状烃的组合,d)根据步骤(c)制备的瑞舒伐他汀钙盐溶液, 进一步用水洗涤,e)通过冷却溶液和过滤,或通过加入反溶剂和过滤,或通过喷雾入惰性气体流来分离式(I)的产物。
    • 17. 发明申请
    • A METHOD OF REMOVING THE TRIPHENYLMETHANE PROTECTING GROUP
    • 一种去除三苯甲基保护基团的方法
    • WO2005021535A3
    • 2005-06-09
    • PCT/CZ2004000051
    • 2004-08-26
    • ZENTIVA ASRADL STANISLAVSTACH JANKLECAN ONDREJ
    • RADL STANISLAVSTACH JANKLECAN ONDREJ
    • C07D257/04C07D403/10
    • C07D257/04C07D403/10Y02P20/55
    • A method of removing the triphenylmethane protecting group from 1-triphenylmethyl-5-(4'-subst. methyl-1,1'-biphenyl-2-yl)-1H-tetrazoles of general formula I wherein R represents the groups of formulae and where R , R and R can be H, a halogen, an unbranched or branched C1-C5 alkyl, C1-C5 hydroxyalkyl, Cl-C5 alkoxy, C1-C5 alkoxymethyl or benzyl, or wherein R and R can form together a saturated or unsaturated C5-C7 ring, optionally an unsubstituted or substituted aromatic ring, is carried out by solvolysis in a simple anhydrous Cl to C5 alcohol in a neutral or slightly basic medium. The method is suitable for the preparation of drugs, such as the potassium salts of losartan, irbesartan or valsartan or candesartan cilexetil.
    • 从通式I的1-三苯基甲基-5-(4'-取代甲基-1,1'-联苯-2-基)-1H-四唑中除去三苯基甲烷保护基的方法,其中R表示式的基团和 其中R 1,R 2和R 3可以是H,卤素,无支链或支链C 1 -C 5烷基,C 1 -C 5羟烷基,C 1 -C 5烷氧基,C 1 -C 5烷氧基甲基或苄基,或其中 R 2和R 3可以一起形成饱和或不饱和的C 5 -C 7环,任选未取代或取代的芳环,通过在中性或微碱性介质中的简单的无水C1至C5醇中溶剂解来进行。 该方法适用于制备药物,如氯沙坦,厄贝沙坦或缬沙坦或坎地沙坦酯的钾盐。