| 摘要 |
PCT No. PCT/GB93/01802 Sec. 371 Date Feb. 28, 1995 Sec. 102(e) Date Feb. 28, 1995 PCT Filed Aug. 25, 1993 PCT Pub. No. WO94/05660 PCT Pub. Date Mar. 17, 1994 <IMAGE> (I) Compounds of formula (I) and their pharmaceutically acceptable salts in which R1 is hydrogen or hydroxy; R2 is hydrogen; or R1 and R2 are joined together so that CR1-CR2 is a double bond; X is selected from -CH2CH2-, -CH=CH-, -C 3BOND C-, -CH2O-, -CH2NH-, -NHCH2-, -CH2CO-, -COCH2-, -CH2S- and -SCH2-; Ar1 is a phenylene moiety; Ar2 is a heteroaryl moiety; and wherein one or both of Ar1 and Ar2 may optionally bear one or more substituents independently selected from halogeno, hydroxy, amino, nitro, cyano, carboxy, carbamoyl, alkyl, alkenyl, alkynyl, alkoxy, alkylamino, di-alkylamino, N-alkylcarbamoyl, di-N,N-alkylcarbamoyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, halogeno-alkyl, carboxyalkyl and alkanoylamino; provided that when R1 is hydroxy, X is not selected from -NHCH2- and -SCH2-; are inhibitors of squalene synthase and hence useful in treating medical conditions in which a lowering of cholesterol is beneficial, such as hypercholesterolemia and atherosclerosis. Processes for preparing these derivatives, pharmaceutical compositions containing them are also described together with their use in medicine.
|
