RCAI-84, 91, and 105-108, ureido and thioureido analogs of KRN7000: Their synthesis and bioactivity for mouse lymphocytes to produce Th1-biased cytokines
作者:Takuya Tashiro、Tomokuni Shigeura、Hiroshi Watarai、Masaru Taniguchi、Kenji Mori
DOI:10.1016/j.bmc.2012.05.073
日期:2012.7
RCAI-84, 91, and 105-108 (1–6), the analogs of KRN7000 (A) with a ureido or a thioureido linkage instead of a carboxamido bond, were synthesized to examine their immunostimulatory activity against mouse lymphocytes. According to their bioassay, the ureido analog of KRN7000 [RCAI-105 (1)] and its 6′-O-methylated derivative [RCAI-106 (4)] induced a large amount of IFN-γ in mice in vivo. The hexadecyl
RCAI-84、91和105-108(1-6)是具有脲基或硫脲基键而不是羧酰胺键的KRN7000(A)的类似物,用于检查其对小鼠淋巴细胞的免疫刺激活性。根据他们的生物测定,KRN7000的脲基类似物[RCAI-105(1)]及其6'- O-甲基化衍生物[RCAI-106(4)]在体内小鼠体内诱导了大量的IFN-γ。十六烷基脲基类似物[RCAI-84(2)]的生物活性与KRN7000相当。辛基脲基[RCAI-107(3)],5-苯基戊基脲基[RCAI-108(5)]和硫脲基[RCAI-91(6)]类似物几乎没有活性。