Therapeutically active compositions of matter are described which are useful for treating or preventing diseases and conditions comprising inflammatory diseases including joint inflammation, Crohn's disease, and inflammatory bowel disease; respiratory diseases such as chronic obstructive pulmonary disease (COPD) including asthma, chronic bronchitis, and pulmonary emphysema; infectious diseases including endotoxic shock and toxic shock syndrome; immune diseases including systemic lupus erythematosis and psoriasis; and other diseases including bone resorption diseases and reperfusion injury; wherein said composition of matter comprises a compound which is an inhibitor of phosphodiesterase isozyme 4 (PDE4) and wherein an indazole is one essential component of said compound's overall chemical structure, and wherein said indazole constitutes a bioisosteric replacement of a catechol component or functional derivative thereof in a known compound having the same said therapeutic activity and the same remaining said components of its overall chemical structure. Included are compounds of Formula (IA) or (IB):
1
wherein R
2
a
and R
2
b
are independently selected from the group consisting essentially of hydrogen and hereinafter recited substituents, provided that one, but not both of R
2
a
and R
2
b
must be independently selected as hydrogen, wherein said substituents comprise moieties including the following:
2
本文描述了治疗或预防包括关节炎、克罗恩病和炎症性肠病在内的炎症性疾病;慢性阻塞性肺疾病(
COPD)包括哮喘、慢性支气管炎和肺气肿等呼吸系统疾病;感染性疾病包括内毒素性休克和毒性休克综合征;免疫性疾病包括系统性红斑狼疮和
银屑病;以及其他疾病包括骨吸收性疾病和再灌注损伤的有用的活性物质组合物。其中,该物质组合物包括一种
磷酸二酯酶同工酶4(PDE4)
抑制剂化合物,其中
吲唑是该化合物整体
化学结构的必要组分之一,该
吲唑构成了一种已知具有相同治疗活性和其整体
化学结构中的相同其余组分的化合物中
儿茶酚组分或其官能衍
生物的
生物等构替代物。包括式(IA)或(IB)的化合物:其中R2a和R2b独立地选自包括氢和以下列出的取代基的基团,前提是R2a和R2b中的一个,但不是两个都必须独立地选为氢,其中这些取代基包括以下基团: