3-氰基-4-6,6-二甲基-2-吡啶酮与氯乙酸乙酯的反应生成2-([3-氰基-4,6-二甲基吡啶-2-基]氧基)乙酸乙酯2和2-(3-氰基乙基)乙酸乙酯-4,6-二甲基-2-氧杂吡啶-1 [2 H ]-基)乙酸酯3,反应产物的产率取决于反应条件(碳酸钾浓度和反应时间)。用作前体以合成吡啶衍生物。这些化合物4,6-10,15,17-20,呋喃并吡啶5,16,吡唑并吡啶12,pyridopyrazolopyrimidines 14A,B。通过光谱数据(IR,NMR和质谱)和元素分析确认了新合成化合物的结构。
[EN] PYRIDAZINONE DERIVATIVES<br/>[FR] DÉRIVÉS DE PYRIDAZINONE
申请人:HOFFMANN LA ROCHE
公开号:WO2010063610A1
公开(公告)日:2010-06-10
The present invention is concerned with novel pyridazinone derivatives of formula (I) wherein R1, R2, R3 and R4 are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds inhibit PDE10A and can be used as medicaments.
The present invention is concerned with novel pyridazinones of formula (I)
wherein R1, R2, R3 and R4 are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds inhibit PDE10A and can be used for the treatment of CNS disorders.
The present invention is concerned with novel pyridazinones of formula (I)
wherein R
1
, R
2
, R
3
and R
4
are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds inhibit PDE10A and can be used for the treatment of CNS disorders.