| 摘要 |
FIELD: chemistry, medicine. ^ SUBSTANCE: in the general formula (I): X is oxygen atom; R1 is C1-10-alkyl , substituted if necessary by phenyl or thienyl group; or R1 is C3-7-cycloalkyl, thienyl, pyridinyl; the thienyl groups can be substituted if necessary by 1-2 C1-3-alkyl groups; phenyl can be substituted if necessary by 1-2 halogen atoms; R2 is C1-6-alkyl; or R2 is C3-7-cycloalkyl, phenyl or pyridinyl; phenyl if necessary can be substituted by one or more halogen atoms or by the CN, C1-3-alkyl, C1-3-alkoxyl, C1-3-fluoroalkyl groups; R3 is C1-6-alkyl; R4 is hydrogen atom or C1-6-alkyl; R5 and R5' are independently of each other the hydrogen atom, hydroxyl; or R5 and R5' form together the oxo-group; n is integer value in the range from 0 to 3; R6 is independently of each other hydrogen atom, halogen atom, C1-3-alkyl, C1-3-alkoxyl. ^ EFFECT: compounds of present invention can find application as pharmaceutical for pathology treatment where the inhibitor of -amiloyd peptide -A4 is useful. ^ 8 cl, 1 tbl, 7 ex |
