4-alkanoylamino-3-pyrazolone derivative

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专利权人:

发明人:

Atsunobu Sakamoto,Naoki Tanaka,Takeshi Fukuda

申请号：

US14495052

公开号：

US09212170B2

申请日:

2014.09.24

申请国别(地区):

US

年份:

2015

代理人:

摘要：

The present invention provides a compound which enhances the production of erythropoietin. The present invention provides, for example, a compound represented by the formula (1) wherein R1: -Q1, -Q1-X-Q2, or -Q1-X-Q2-Y-Q3: a monocyclic or bicyclic aromatic heterocyclic group Q2, Q3: an aromatic hydrocarbon ring group or a monocyclic aromatic heterocyclic group X: —CONH—, —CONHCH2—, —CH2OCH2—, —NHCH2CH2—, or the like Y: a single bond, —O—, —(CH2)n—, or —O—(CH2)n— m, n: an integer from 1 to 3 R2: H or an alkyl group and R3: H, an alkoxycarbonyl group, a carboxy group, an aromatic hydrocarbon ring group, or a monocyclic aromatic heterocyclic group.

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