acid (1) exhibited weak binding activity to Bcl-xL. These compounds exhibited cytotoxicity against KB and HCT-116 cell lines with IC50 values between 10 and 30 μM. Bioconversion of compound 1 by Rhizopus arrhizus afforded new hydroxylated metabolites (3−7) of the ent-trachylobane and ent-kaurene type and compound 8, with a rearranged pentacyclic carbon framework that was named rhizopene. Compounds 3−8
在我们寻找抗凋亡蛋白Bcl-xL
抑制剂的过程中,对Xylopia caudata的研究提供了一种新的二
萜类化合物,eNT -trachyloban-4β-ol(2)和五个已知的eNT- trachyloban或eNT- atisane化合物。仅eNT -trachyloban-18-oic acid(1)表现出对Bcl-xL的弱结合活性。这些化合物对KB和HCT-116
细胞系表现出细胞毒性,IC 50值为10至30μM。化合物的
生物转化1由少根根霉,得到新的羟基化代谢物(3 - 7所述的)ENT-trachylobane和ENT -kaurene类型和化合物8,与被命名rhizopene重排的五环碳骨架。化合物3 - 8是非细胞毒性的两个癌
细胞系,和化合物3和5表现出对Bcl-xL的只有弱的结合亲和力。