申请人:Santen Pharmaceutical Co., Ltd.
公开号:US05292767A1
公开(公告)日:1994-03-08
A compound of the formula [I] and pharmaceutically acceptable salts thereof; and a synthetic intermediate represented by the formula [II] and pharmaceutically acceptable salts thereof, ##STR1## wherein R 1 is hydrogen or lower alkyl; R 2 is hydrogen or a protective group of thiol; R 3 is hydroxy, a remainder of ester group or a remainder of amido group; A is straight or branched lower alkylene, and the sulfur atom in the side chain may be directly join with --CO-- to conform a thiolactone ring. The compounds of this invention have excellent thymulin-like activities and are expected to be useful for treatment of various immune disorders such as immunodeficiency and autoimmune diseases.
该公式化合物[I]及其药用盐;以及该公式[II]代表的合成中间体及其药用盐,其中R 1 是氢或较低的烷基;R 2 是氢或硫醇的保护基;R 3 是羟基、酯基的剩余部分或酰胺基的剩余部分;A 是直链或支链较低的烷基,侧链中的硫原子可以直接与--CO--结合形成硫内酯环。本发明的化合物具有出色的胸腺素样活性,预计可用于治疗各种免疫紊乱,如免疫缺陷和自身免疫疾病。