申请人:Somei Masanori
公开号:US20090054511A1
公开(公告)日:2009-02-26
It is intended to provide a tryptophan derivative that activates osteoblasts and to provide a therapeutic drug for osteoporosis and an osteoblast activator using this tryptophan derivative.
This invention relates to a compound represented by the following formula (I) or a salt thereof:
wherein X represents a halogen atom; R
1
represents a hydrogen atom, substituted or unsubstituted C
1-6
alkyl group, substituted or unsubstituted C
2-6
alkenyl group, substituted or unsubstituted C
2-6
alkynyl group, substituted or unsubstituted aromatic group, substituted or unsubstituted aralkyl group, substituted or unsubstituted acyl group, substituted or unsubstituted arylsulfonyl group, substituted or unsubstituted C
1-6
alkylsulfonyl group, substituted or unsubstituted C
2-7
alkoxycarbonyl group, or hydroxyl group; R
2
represents a substituted or unsubstituted C
1-21
alkyl group; R
3
, R
5
, and R
6
are the same or different and represent a hydrogen atom or halogen atom; R
4
represents a hydrogen atom or substituted or unsubstituted C
1-6
alkyl group; and R
7
represents a hydrogen atom or substituted or unsubstituted C
1-21
hydrocarbon group, and to a therapeutic drug for osteoporosis and an osteoblast activator comprising the compound or a salt thereof.
本发明旨在提供一种激活成骨细胞的色氨酸衍生物,并提供一种治疗骨质疏松症和使用该色氨酸衍生物的成骨细胞激活剂的治疗药物。本发明涉及一种由以下式(I)或其盐所表示的化合物:其中X代表卤素原子;R1代表氢原子,取代或未取代的C1-6烷基,取代或未取代的C2-6烯基,取代或未取代的C2-6炔基,取代或未取代的芳香族基,取代或未取代的芳基烷基,取代或未取代的酰基,取代或未取代的芳基磺酰基,取代或未取代的C1-6烷基磺酰基,取代或未取代的C2-7烷氧羰基或羟基;R2代表取代或未取代的C1-21烷基;R3、R5和R6相同或不同,代表氢原子或卤素原子;R4代表氢原子或取代或未取代的C1-6烷基;R7代表氢原子或取代或未取代的C1-21碳氢基团,以及包含该化合物或其盐的治疗骨质疏松症和成骨细胞激活剂的治疗药物。