【摘要】 月光花叶的乙醇粗提物,经中性氧化铝柱及硅胶柱层析,可得几个有生理活性的组份,其中活性最强的组份之一用稀乙醇重结晶,即得白色针状晶体。熔点161—162℃,[α]_D²¹—60±2°（在EtOH中）。经定性分析,红外光谱、质谱及核磁共振谱等的分析结果表明:此结晶体为11-羟基十六烷酸乙酯的低聚糖甙。我们称之为月光花素甲（Calonyctin A）,代号DC-2。 酯类糖甙（月光花素甲）经酸降解、分离,可得无色针状甙元,经鉴定为11-羟基十六烷酸乙酯;酯糖甙中的糖是由5克分子己醛糖所组成的。 月光花素甲是一种植物生长调节物质。更多还原

【Abstract】 A Physiologically active ingredient from leaves of evening-glory(Calonyction aculsatum(L.) House) has been isolated and purified by meansof column chromatography and recrystallization from dilute ethanol. One ofthe active ingredients is a colorless needle m.p. 161-162℃[α]D21-60±2°(in EtOH) .Preliminary characteristics of IR,MS,NMR spectra and functional-group tests show that the substance is an 1.1-O-pentuglycoside of ethyl jalapinolate,and we narned it Calonyctin A,or DC-2.The aglyconc is an ethyl H-hydroxyhexadecanatc, i.e. ethyl jalapinolate. Calonyctin A is Sound to be a plant growth regulator.更多还原