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从绵马贯众Dryopteriscrassirhizoma的乙醚浸膏中分得3种化合物。经理化常数和光谱分析数据鉴定为绵马贯众素ABBA（dryocrassine，Ⅰ），绵马酸ABA（filixicacid，Ⅱ）和白绵马素AA（albaspidin，Ⅲ）。化合物Ⅱ和Ⅲ为首次从该植物中分得。
Three compounds were isolated from the ether extract of Mianma Guanzhong Dryopteriscrassirhizoma. The managerial constants and spectral analysis data identified as ABBA (dryocrassine, I), filicic acid (II) and albaspidin (III). Compounds II and III were isolated from the plant for the first time.