【摘 要】
：
Two novel epimeric eremophilane sesquiterpenes, 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-oxoeremophilane (1) and 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
Two novel epimeric eremophilane sesquiterpenes, 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-oxoeremophilane (1) and 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-oxoeremophi- lane (2) were isolated from the methanol extract of the flower of Cacalia tangutica (Franch.) Hand-Mazz. Their structures were characterized by 1D-, 2D-NMR (1H-1H COSY, HMQC, HMBC, 1H-1H NOESY) and HRESI-MS techniques.
Two novel epimeric eremophila sesquiterpenes, 7β-H-3α-angeloyl-9 (10) -ene-11, 12-epoxy-8-oxoeremophilane (1) and 7β-H-3α-angeloyl-9 , 12-epoxy-8-oxoeremophi- lane (2) were isolated from the methanol extract of the flower of Cacalia tangutica (Franch.) Hand-Mazz. Their structures were characterized by 1 D- HMQC, HMBC, 1H-1H NOESY) and HRESI-MS techniques.
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