The present invention relates to a group of novel 4,5-dihydro-1H-pyrazole derivatives which are potent antagonists of the cannabis CB1-receptor. The compounds have general formula (I) wherein R and R1 are the same or different and represent phenyl, thienyl or pyridyl which groups may be substituted with 1, 2 or 3 substituents Y or R and/or R1 represent naphtyl, R2 represents hydrogen, hydroxy, C1-3-alkoxy, acetyloxy or propionyloxy, Aa represents one of the groups (i), (ii), (iii), (iv) or (v), Bb represents sulfonyl or carbonyl, R3 represents benzyl, phenyl, thienyl or pyridyl which may be substituted with 1, 2 or 3 substituents Y or R3 represents C1-8 branched or unbranched alkyl or C3-8 cycloalkyl, or R3 represents naphtyl.
本发明涉及一类新型的4,5-二氢-1H-
吡唑衍
生物,它们是
大麻CB1受体的有效拮抗剂。该化合物具有通式(I),其中R和R1相同或不同,并表示苯基,
噻吩基或
吡啶基,这些基团可以用1、2或3个取代基Y或R和/或R1表示
萘基,R2表示氢、羟基、C1-3-烷氧基、乙酰氧基或丙酰氧基,Aa表示(i)、(ii)、(iii)、(iv)或(v)中的一种基团,Bb表示磺酰基或羰基,R3表示苄基,苯基,
噻吩基或
吡啶基,这些基团可以用1、2或3个取代基Y或R3表示C1-8支链或直链烷基或C3-8环烷基,或R3表示
萘基。