Synthesis and Structure-Activity Relationships of TAN-1511 Analogues as Potent Hematopoietic Agents.
作者:Fumio ITOH、Yuji NISHIKIMI、Atsushi HASUOKA、Yoshio YOSHIOKA、Koichi YUKISHIGE、Seiichi TANIDA、Tetsuya AONO
DOI:10.1248/cpb.46.255
日期:——
A series of TAN-1511 analogues bearing a non-peptide spacer in place of the Gly-Gly-Gly sequence in the peptide moiety was synthesized, and the effects of these compounds on the proliferation of bone marrow cells in culture and experimental leukocytopenia in mice were examined. The structure-activity relationships obtained were as follows. As the substituent at the 2-position of the 4-thiaheptanoic acid framework, an amino group, methyl group or hydrogen was preferable; as a spacer in place of the Gly-Gly-Gly sequence, a 4-aminobenzoyl or 4-aminomethylbenzoyl group was suitable; and as the fatty acids bonded to the 6, 7-dihydroxy groups, C16 fatty acid was best. Compounds 12f, 30d and 30i potently promoted the proliferation of bone marrow cells in culture and the restoration of leukocyte counts in a murine leukocytopenia model.
合成了一系列TAN-1511类似物,这些类似物在肽部分中以非肽间隔物替代了Gly-Gly-Gly序列,并研究了这些化合物对体外骨髓细胞增殖和小鼠实验性白细胞减少症的影响。获得的结构-活性关系如下:作为4-硫代庚酸骨架2位的取代基,氨基、甲基或氢较为适宜;作为Gly-Gly-Gly序列的间隔物,4-氨基苯甲酰基或4-氨基甲基苯甲酰基较为合适;而与6,7-二羟基相连的脂肪酸中,C16脂肪酸最佳。化合物12f、30d和30i能显著促进体外骨髓细胞的增殖,并在小鼠白细胞减少模型中有效恢复白细胞计数。