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
    • 2. 发明申请
    • PROCESS FOR PREPARING 2-AMINOTHIAZOL-4-YL-ACETIC ACID DERIVATES
    • 制备2-氨基四氢-4-戊酸衍生物的方法
    • WO2011029596A1
    • 2011-03-17
    • PCT/EP2010/005538
    • 2010-09-09
    • LONZA LTDDAI, DanmeiZHU, WeiWANG, Siming
    • DAI, DanmeiZHU, WeiWANG, Siming
    • C07D277/38A61K31/426
    • C07D277/40
    • The invention provides a process for preparing a (2-aminothiazol-4-yl)-triarylmethyloxy- iminoacetic acid of the formula (I) or an ester thereof of the formula (II) wherein R 1 , R 2 and R 3 independently are optionally substituted phenyl groups and R 4 is C 1-6 alkyl, by reacting a (2-aminothiazol-4-yl)hydroxyiminoacetic acid ester of the formula (III) wherein R 4 is as defined above, with an alcohol of the formula R 1 R 2 R 3 COH, wherein R 1 , R 2 and R 3 are as defined above, in the presence of BF 3 to form a (2-aminothiazol-4-yl)triaryl-methyloxyiminoacetic acid ester of the formula (II), and, optionally, hydrolyzing said ester of formula (II) to obtain the acid of formula (I).
    • 本发明提供了制备式(I)的(2-氨基噻唑-4-基) - 三芳基甲氧基 - 亚氨基乙酸或其式(II)的酯的方法,其中R 1,R 2和R 3独立地是任选取代的苯基 和R 4是C 1-6烷基,其中R 4如上定义的式(III)的(2-氨基噻唑-4-基)羟基亚氨基乙酸酯与式R 1 R 2 R 3 COH的醇反应,其中R1,R2和R3 在BF 3存在下形成式(II)的(2-氨基噻唑-4-基)三芳基 - 甲氧基亚氨基乙酸酯,和任选地水解所述式(II)的酯以获得酸 的式(I)化合物。
    • 6. 发明公开
    • PROCESS FOR PREPARING 2-ALKYL-3-AROYL-5-NITRO-BENZOFURANS
    • 制备2-烷基-3-芳酰基-5-硝基苯并呋喃的方法
    • EP2344467A1
    • 2011-07-20
    • EP08877230.6
    • 2008-10-10
    • Lonza Ltd.
    • WELLIG, AlainRODUIT, Jean-PaulDAI, DanmeiCHEN, Rongmin
    • C07D307/80C07C49/76
    • C07C45/673C07C45/455C07C45/71C07C251/52C07D307/80C07C49/84C07C49/825
    • The present invention relates to a process for the preparation of a compound of formula (I), wherein R
      1 is selected from C
      1-6 -alkyl, C
      3-6 -cycloalkyl and aralkyl, and wherein R
      2 at each occurrence independently is halogen or C
      1-6 -alkyl, and m is an integer from 0 to 4, Q is selected from halogen, -NO
      2 and -NR
      3 R
      4 , wherein R
      3 and R
      4 are independently selected from hydrogen, C
      1-6 -alkyl, C
      3-6 -cycloalkyl, aryl, aralkyl, mesyl and tosyl, or wherein R
      3 and R
      4 together form a C
      4-6 -alkylene group, Y at each occurrence is hydrogen or a hydroxy protection group W that can be hydrolytically cleaved under acidic conditions, and n is an integer from 1 to 3, and n is an integer from 1 to 3, with the proviso that n and m together are not greater than 5.
    • 本发明涉及制备式(I)化合物的方法,其中R 1选自C 1-6 - 烷基,C 3-6 - 环烷基和芳烷基,并且其中R 2在每次出现时独立地为 卤素或C 1-6 - 烷基,并且m是0至4的整数,Q选自卤素,-NO 2和-NR 3 R 4,其中R 3和R 4独立地选自氢,C 1-6 - 烷基,C 3-6 - 环烷基,芳基,芳烷基,甲磺酰基和甲苯磺酰基,或者其中R 3和R 4一起形成C 4-6 - 亚烷基,Y在每次出现时为氢或羟基保护基W, 在酸性条件下被水解裂解,并且n是1至3的整数,且n是1至3的整数,条件是n和m一起不大于5。