Cell Differentiation-Inducing Diterpenes from Andrographis paniculata NEES.
作者:Takakuni MATSUDA、Masanori KUROYANAGI、Satoko SUGIYAMA、Kaoru UMEHARA、Akira UENO、Kozaburo NISHI
DOI:10.1248/cpb.42.1216
日期:——
The methanol extract of the aerial part of Andrographis paniculata NEES showed potent cell differentiation-inducing activity on mouse myeloid leukemia (M1) cells. From the ethyl acetate-soluble fraction of the methanol extract, six new diterpenoids of ent-labdane type, 14-epi-andrographolide (3), isoandrographolide (4), 14-deoxy-12-methoxyandrographolide (7), 12-epi-14-deoxy-12-methoxyandrographolide (8), 14-deoxy-12-hydroxyandrographolide (9) and 14-deoxy-11-hydroxyandrographolide (10) as well as two new diterpene glucosides, 14-deoxy-11, 12-didehydroandrographi-side (12) and 6'-acetylneoandrographolide (14), and four new diterpene dimers, bis-andrograpolides A (15), B (16), C (17) and D (18), were isolated along with six known compounds. The structures of the diterpenoids were determined by means of spectral methods. Some of these compounds showed potent cell differentiation-inducing activity towards M1 cells.
穿心莲地上部分甲醇提取物对小鼠骨髓性白血病(M1)细胞具有强大的细胞分化诱导活性。从甲醇提取物的乙酸乙酯可溶部分中分离出六种新的ent-labdane型二萜类化合物,即14-表穿心莲内酯(3)、异穿心莲内酯(4)、14-脱氧-12-甲氧基穿心莲内酯(7)、12-表-14-脱氧-12-甲氧基穿心莲内酯(8)、14-脱氧-12-羟基穿心莲内酯(9)和14-脱氧-11-羟基穿心莲内酯(10),以及两种新的二萜葡萄糖苷,即14-脱氧-11,12-二脱氢穿心莲苷(12)和6'-乙酰基新穿心莲内酯(14),以及四种新的二萜二聚体,即双穿心莲内酯A(15)、B(16)、C(17)和D(18),以及六种已知化合物。通过光谱法确定了二萜类化合物的结构。其中一些化合物对M1细胞具有强大的细胞分化诱导活性。