The present invention relates to processes and intermediates useful in the preparation 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).
本发明涉及在制备(R)-2-(7-(4-环戊基-3-(三
氟甲基)苯基氧基)-1,2,3,4-四氢-环戊[b]
吲哚-3-基)
乙酸(Ia式)及其盐中有用的过程和中间体,这是一种S1P1受体调节剂,可用于治疗S1P1受体相关的疾病和障碍,例如由淋巴细胞介导的疾病和障碍、移植排斥、自身免疫性疾病和障碍、炎症性疾病和障碍(例如急性和慢性炎症病症)、癌症以及具有血管完整性缺陷或与血管生成相关的病症,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)。