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    • 4. 发明申请
    • QUATERNARY BIS-AMMONIUM SALT PRECURSORS AND THEIR USES AS PRODRUGS HAVING AN ANTIPARASITIC ACTIVITY
    • 季铵盐钠盐前驱物及其作为具有抗生素活性的原料
    • WO01005742A1
    • 2001-01-25
    • PCT/FR2000/002122
    • 2000-07-21
    • C07D295/08A61K31/132A61K31/16A61K31/39A61K31/4025A61K31/444A61K31/4453A61K31/5377A61P33/00A61P33/02A61P33/06A61P43/00C07C209/74C07C211/09C07C319/24C07C323/41C07C327/30C07C327/34C07D207/09C07D277/22C07D277/24C07D277/30C07D277/587C07D295/12C07D295/14C07D295/155C07D327/06A61K31/14A61K31/145A61K31/425C07C323/27C07C323/59
    • C07D295/155A61K47/541C07C211/09C07C323/41C07C327/30C07C327/34C07D277/24C07D277/30
    • The invention concerns drug precursors with antimalarial effect, characterised in that it consists in quaternary bis-ammonium salts of general formula (I) wherein A and A', identical or different, are respectively either a group A1 and A'1 of formula (1) wherein n = 2 to 4; R'1 is hydrogen, C1-C5 alkyl, optionally substituted by an aryl, a hydroxy, an alkoxy, wherein the alkyl comprises 1 to 5 C, or aryloxy and W is halogen or a nucleofuge group; or a group A2 which represents formyl-CHO, or acetyl-COCH3. B and B', identical or different, represent respectively either the group B1 and B'1, if A and A' respectively represent A1, A'1, B1, B'1 representing a group R1 which has the same definition as R'1 above, but cannot be a hydrogen atom; or respectively the groups B2 and B'2, if A and A' represent A2, B2 or B'2 being the group R1 as defined above, or a group of formula (2) wherein -Ra is RS- or RCO-, wherein R is a C1-C6 alkyl, substituted if required, a phenyl or benzyl, wherein the phenyl is substituted if required, the latter being optionally substituted; R2 is hydrogen, C1-C5 alkyl, or a -CH2-COO- (C1-C5)alkyl group; and R3 is hydrogen, C1-C5 alkyl or alkenyl, substituted if required, a phosphate, an alkoxy wherein the alkyl is a C1-C3 alkyl, or aryloxy; or an alkyl (or aryl) carbonyloxy; or R2 and R3 form together a cycle with 5 or 6 C; R and R3 can be bound to form a cycle. alpha represents: either a single bond when A and A' represent A1 and A'1: or when A and A' represent A2, and B2 and B'2 Represent (3) either, when A and A' are -CHO or -COCH3 and B2 and B'2 are R1, a group of formula (4) or a group of formula (5) wherein (a) represents a bond towards Z and (b) a bond towards the nitrogen atom. Z is a C9-C21 alkyl, if required with insertion of one or several bonds, and/or one or several heteroatoms O and/or S and/or several aromatic cycles, and the pharmaceutically acceptable salts of said compounds. Said precursors and cyclized thiazolium derivatives are useful as antiparasitic medicines in particular antimalarial and antibabesiosis.
    • 本发明涉及具有抗疟作用的药物前体,其特征在于其由通式(I)的季铵盐,其中A和A'分别相同或不同,分别为式(1)的基团A1和A'1 )其中n = 2至4; R 1是氢,任选地被芳基,羟基,烷氧基取代的C 1 -C 5烷基,其中烷基包括1至5个C,或芳氧基,W是卤素或核离去基团; 或代表甲酰基-YC或乙酰基-COCH 3的基团A2。 B和B'相同或不同,分别表示组B1和B'1,如果A和A'分别表示A1,A'1,B1,B'1,表示具有与R'相同定义的基团R1, 1,但不能是氢原子; 或分别为基团B2和B'2,如果A和A'表示A2,B2或B'2是如上所定义的基团R 1或式(2)的基团,其中-R a是RS-或RCO-,其中 R是C1-C6烷基,如果需要,被取代,苯基或苄基,其中如果需要,苯基被取代,后者任选被取代; R2是氢,C1-C5烷基或-CH2-COO-(C1-C5)烷基; 并且R 3是氢,C 1 -C 5烷基或链烯基,如果需要,被取代,磷酸酯,烷基是C 1 -C 3烷基或芳氧基的烷氧基; 或烷基(或芳基)羰基氧基; 或R 2和R 3与5或6个碳原子一起形成一个循环; R和R3可以结合形成一个循环。 α表示:当A和A'表示A1和A'1时,单键或当A和A'表示A2时,或B2和B'2表示(3)当A和A'为-CHO或 - COCH 3和B 2和B'2是R 1,式(4)或式(5)的基团,其中(a)代表朝向Z的键和(b)朝向氮原子的键。 Z是C9-C21烷基,如果需要,插入一个或多个键,和/或一个或多个杂原子O和/或S和/或若干芳族循环,以及所述化合物的药学上可接受的盐。 所述前体和环化噻唑衍生物可用作抗寄生虫药物,特别是抗疟疾和抗生素。