The invention relates to substituted dihydro- benzopyrans carboxylates of the formula:
wherein A is a methylene chain having 1-10 carbon atoms, inclusive, optionally substituted by hydroxy; wherein V is:
a) hydrogen;
b) hydroxy;
c) =O; or
d) R6CH2O-; wherein R, is:
a) -COCH3;
b) -CHOHCH3;
c) -C2H5;
d) -hydrogen; or
e) -COOC2H5 wherein R2 is:
a) -hydrogen;
b) -hydroxy; or
c) R12CH2CO2-; wherein R3, R4, R5, R7, R8, R9, R10, R11 and R12 each of which may be the same or different, are:
a) hydrogen;
b) lower-alkyl having 1-6 carbon atoms inclusive; or
c) allyl;
wherein R5 is:
a) hydrogen; or
b) R7CH2C(O)-; wherein R13 is hydrogen, hydroxy, alkoxy of 1 to 6 carbon atoms inclusive, or -OM wherein M is an alkali metal, alkyl of 1 to 6 carbon atoms, inclusive, or N⊕R8R9R10R11, or H⊕NR8R9R10, or the pharmacologically acceptable addition salts thereof, which are useful as leukotriene D4 (LTD4) inhibitors and therefore useful in the treatment of allergies and inflammatory conditions.
本发明涉及式中的取代二氢
苯并呋喃羧酸盐:
其中 A 是具有 1-10 个碳原子的亚甲基链,任选被羟基取代;其中 V 是:
a) 氢
b) 羟基
c) =O;或
d) R6CH2O-;其中 R 是
a) -COCH3
b) -CHOHCH3
c) -
C2H5
d) -氢;或
e) -COO 其中 R2 是
a) -氢
b) -羟基;或
c)R12CH2CO2-; 其中 R3、R4、R5、R7、R8、R9、R10、R11 和 R12 可以相同或不同:
a) 氢
b) 含 1-6 个碳原子的低级烷基;或
c) 烯丙基;
其中 R5 是
a) 氢;或
b) R7CH2C(O)-;其中 R13 是氢、羟基、1-6 个碳原子(含)的烷氧基,或 -OM,其中 M 是碱
金属、1-6 个碳原子(含)的烷基,或 N⊕R8R9R10R11,或 H⊕NR8R9R10,或其药理上可接受的加成盐,它们可用作
白三烯 D4(LT
D4)
抑制剂,因此可用于治疗过敏症和炎症。