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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한약학회 약학회지 약학회지 제1권 제1호
발행연도
1948.1
수록면
2 - 4 (3page)

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초록· 키워드

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Syringa oblata var dilatata (Nakai) Rehder is a oleaceous, deciduous shrub indigenous in the calcareous zones of Korea. The author researched the constituents of the leaves of the plant, especially the bitter principles which may be used as amara. According to the literature a bitter principle Syringin and Mannitol were isolated from the leaves of S. vulgaris L. And later on B. Power indicated that syringin and mannitol were widely distributed in oleaceous plants. The fresh leaves of the plant wer extracted with hot water, the filtered clear liquid was mixed with solution of lead acetate. The lead precipitate was filtered off and the filtered liquid was freed from lead by H$_{4}$S. The filtrate thus obtained was evaporated, and from the residue colorless needles, M. P. 166.deg., were obtained. It was soluble in water, in hot alcohol, and insoluble in ether and had a sweet taste. The results of the elementar analysis, M. P. and other characteristics agreed with that of d-mannitol. Finally it was proved to be identical with d-mannitol through conversion of it into Hexaacetyl mannitol, M. P. 124.deg., Triformal mannitol, M. P. 227.deg., Tribenzal mannitol, M. P. 224.deg., which exhibited no depression, when mixed with authentic specimens. The experiments to isolate bitter principles of the plant are in progress.

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