Fourteen of the methyl 2-cyano-3,12-dioxo-18β-olean-1,9(11)-dien-30-oate (CDODO-Me-12, 10d) analogues with different structures of ring C were synthesized to determine the active groups for inhibiting cell growth and inducing apoptosis in human leukemia HL-60 cells. An unsaturated group in ring C was required to maintain the ability to inhibit cell growth and induce apoptosis. Compound 10e with 9(11),12-dien in ring C displayed comparable apoptosis induction ability to 10d associated with decreased levels of c-FLIP, but not Mcl-1 and XIAP. Compound 10e had decreased ability to deplete GSH compared to compound 10d. Compound 10e represents a new active compound acting through a different mechanism from that of compound 10d.
合成了14种具有不同C环结构的2-
氰基-3,12-二氧-18β-油烯-1,9(11)-二烯-30-酸甲酯(CD
ODO-Me-12,10d)类似物,以确定抑制人白血病HL-60细胞增殖和诱导凋亡的活性基团。C环中需要一个不饱和基团来维持抑制细胞增殖和诱导凋亡的能力。C环中具有9(11),12-二烯的化合物10e显示出了与10d相当的诱导凋亡能力,这与其降低了c-FLIP而非Mcl-1和XIAP的
水平有关。与化合物10d相比,化合物10e的耗竭
谷胱甘肽能力降低。化合物10e是一种通过不同于化合物10d的作用机制发挥活性的新型活性化合物。