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夏天无[Corydalis decumbens(Thunb)Pers]为常用中草药之一,主要产地为我国的江西和安徽.药用部位为块根,性味苦良,民间用于治疗高血压偏瘫和风湿性关节炎等症.近年来,夏天无眼药水用于治疗青少年假性近视眼效果显著,引起了国内外学者的兴趣.从夏天无中已分得了新生物碱——夏天无碱乙素,新天然产物——白毛茛碱宁和脱氢白毛茛碱宁以及其它十多个已知成分.近又从中分得一新生物碱——夏天无碱丙素(1). 1为棕色丛毛状结晶,高分辨质谱定分子式为C_(19)H_(11)NO_6(M~+349.0548).紫外吸收峰和papaverine相似,红外光谱示五元环内酯(1760cm~(-1)),次甲二氧基(940cm~(-1)).根据紫外
In the summer, [Corydalis decumbens (Thunb) Pers] is one of the commonly used Chinese herbal medicines, mainly produced in Jiangxi and Anhui provinces of China. The medicinal site is rooted in roots and has a good bitter taste. The folk are used to treat hypertensive hemiplegia and rheumatoid arthritis. In recent years, no eye drops have been used for the treatment of pseudo pseudo myopia in summer, which has attracted the interest of scholars at home and abroad. Since the summer, no new alkaloids have been allocated - no alkali B in summer, new natural products - Alkaloids and dehydrogenated albuterin, as well as more than a dozen other known components. Nearly a new alkaloid was isolated from it - summer alkali-free propanol (1). 1 is brown hairy crystals, high resolution The mass spectrometry formula is C_(19)H_(11)NO_6(M~+349.0548). The ultraviolet absorption peak is similar to papaverine, and the infrared spectrum shows a five-membered ring lactone (1760 cm~(-1)), methylenedioxy ( 940cm~(-1)). According to UV