Bioactive Constituents from Chinese Natural Medicines. XIV. New Glycosides of .BETA.-Carboline-Type Alkaloid, Neolignan, and Phenylpropanoid from Stellaria dichotoma L. var. lanceolata and Their Antiallergic Activities
作者:Toshio Morikawa、Bohang Sun、Hisashi Matsuda、Li Jun Wu、Shoichi Harima、Masayuki Yoshikawa
DOI:10.1248/cpb.52.1194
日期:——
A new beta-carboline-type alkaloidal glycoside, glucodichotomine B, four new neolignan glycosides, dichotomosides A, B, C, and D, and a new phenylpropanoid glycoside, dichotomoside E, were isolated from a Chinese natural medicine, the roots of Stellaria dichotoma L. var. lanceolata. The structures of the new glycosides were determined on the basis of chemical and physicochemical evidence. Among them
从一种天然药物中分离出一种新的β-咔啉型生物碱糖苷二糖苷B,四种新的新木脂苷,二香苷A,B,C和D以及一种新的苯丙烷类糖苷二香苷E,从中药Stellaria dichotoma的根中分离出来。 L.var。披针形。根据化学和物理化学证据确定了新糖苷的结构。其中,地二糖苷D抑制RBL-2H3细胞中β-己糖胺酶(IC(50)= 64 microM)以及肿瘤坏死因子-α和白细胞介素4(IC(50)= 16,34 microM)的释放。这些发现表明,二甲醚菊酯D在I型变态反应中对晚期反应的抵抗力要强于立即阶段。