RESUMO
The crystal structure of medicated realgar in China was validated as alpha-As4 S4 by X-ray diffraction and Raman spectroscopy in the present paper. Ten batches of medicinal realgar were analyzed including realgar ore, medicinal realgar powder, and prepared Chinese medicine. Identification of two As4 S4 polymorphs confirmed that the crystal structure of medicated realgar in China is alpha-As4 S4. Studies on 18 batches of preparative realgar powder showed that processing of realgar can not change the crystal structure of realgar.
Assuntos
Arsenicais/química , Sulfetos/química , China , Análise Espectral Raman , Difração de Raios XRESUMO
OBJECTIVE: To study the chemical constituents of the flower buds of Daphne genkwa. METHODS: The constituents of petroleum ether and ethyl acetate-soluble portions were isolated and purified by means of chromatography, then they were identified by their physico-chemical characteristics and spectral features. RESULTS: Ten compounds were isolated and identified as octacosane (1), dotriacontane (2), beta-sitosterol (3), 4', 7-dimethoxy-5-hydroxyflovone (4), aurantiamide acetate (5), genkwanin (6), luteolin (7), apigenin (8), 3'-hydroxygenkwanin (9) and daphnoretin (10). CONCLUSION: Compound 1 and 2 are isolated from this plant for the first time.
Assuntos
Alcanos/isolamento & purificação , Daphne/química , Diacetil/isolamento & purificação , Dipeptídeos/isolamento & purificação , Plantas Medicinais/química , Alcanos/química , Apigenina/química , Apigenina/isolamento & purificação , Cumarínicos/química , Cumarínicos/isolamento & purificação , Diacetil/química , Dipeptídeos/química , Flavonas/química , Flavonas/isolamento & purificação , Flores/química , Luteolina/química , Luteolina/isolamento & purificação , Estrutura Molecular , Sitosteroides/química , Sitosteroides/isolamento & purificaçãoRESUMO
OBJECTIVE: To investigate the chemical constituents in Flos Sophorae Carbonisatus. METHOD: Silica gel column chromatography was used to separate and purify the chemical constituents. The structures were elucidated by spectral analysis. RESULT: Six compounds were isolated from Flos Sophorae Carbionisatus, and their structures were elucidated as maltol (1), 3-hydroxypyridine (2), malto-3-O-[6'-O-(4"-hydroxy-tans-cinnamoyl)-beta-D-glucopyranoside (3), 3-O-[beta-D-galactopyranosyl-(1-->2)-beta-D-glucuronopyranosyl] sophoradiol ethyl ester (4), 3-O-[beta-D-galactopyranosyl-(1-->2)-beta-D-glucuronopyranosyl] sophoradiol methyl ester (5), rutin (6). CONCLUSION: 4 is a new compound, and 1,2,3,5 were first reported from Flos Sophorae Carbonisatus.
Assuntos
Ácidos Cumáricos/isolamento & purificação , Glucosídeos/isolamento & purificação , Plantas Medicinais/química , Saponinas/isolamento & purificação , Sophora/química , Ácidos Cumáricos/química , Flores/química , Glucosídeos/química , Conformação Molecular , Estrutura Molecular , Piridinas/química , Piridinas/isolamento & purificação , Pironas/química , Pironas/isolamento & purificação , Saponinas/químicaRESUMO
By collecting and analyzing the information of the processing of Flos Sophorae in ancient and recent literatures, we discovered that such methods as steaming, boiling, stir-frying and baking had been used before Qing Dynasty. There were more than 10 kinds of different decoction pieces due to different subsidiary agents and distinction of processing degree. In modern times, besides stir-frying with vinegar used in Jilin, stir-flying with honey used in Henan and Shandong, being crude, yellowing by stir-frying and carbonizing by stir-frying are used in other places. This research has provided useful information for the modern processing study by summarizing the previous experiences earnestly.