The present invention relates to processes and intermediates useful in the preparation of of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
本发明涉及用于制备(R)-2-(7-(4-环戊基-3-(三
氟甲基)苄氧基)-
1,2,3,4-四氢环戊[b]吲哚-3-基)
乙酸及其盐的过程和中间体,该化合物是S1P1受体调节剂,用于治疗S1P1受体相关疾病,例如由淋巴细胞介导的疾病和疾病,移植排斥反应,自身免疫疾病和疾病,炎症性疾病和疾病(例如,急性和慢性炎症症状),癌症,以及具有血管完整性基础缺陷或与血管生成相关的疾病和疾病,如可能是病理性的(例如,在炎症、肿瘤发展和动脉粥样硬化中可能发生的情况)。