Subject(s)
Cevanes/isolation & purification , Flavones , Flavonoids/isolation & purification , Insecta/chemistry , Materia Medica/chemistry , Animals , Cholesterol/chemistry , Cholesterol/isolation & purification , Female , Flavonoids/chemistry , Palmitic Acids/chemistry , Palmitic Acids/isolation & purificationABSTRACT
A new C-nor-D-homosteroidal alkaloid named Yibeinoside B was isolated from the bulb of Fritillaria pallidiflora Schrenk by column chromatographic techniques. The structure has been determined based on spectral and chemical data.
Subject(s)
Alkaloids/isolation & purification , Drugs, Chinese Herbal/chemistry , Homosteroids , Norsteroids , Steroids/isolation & purification , Alkaloids/chemistry , Molecular Structure , Steroids/chemistryABSTRACT
A new steroidal alkaloid, yibeissine (II), with a know alkaloid (I) was isolated from the bulb of Fritillaria pallioiflora Schrenk by column chromatographic techniques. Their structures have been determined based on spectral and chemical data.
Subject(s)
Alkaloids/isolation & purification , Drugs, Chinese Herbal/chemistry , Steroids/isolation & purification , Alkaloids/chemistry , Steroids/chemistryABSTRACT
A new C-nor-D-homosteroid alkaloid, C27H43O6N, mp 171.5-173 degrees C, named pingbeimine C, was isolated from the bulb of Fritillaria ussuriensis Maxim. On the basis of IR, MS, 1HNMR and 13CNMR spectroscopic data, particularly X-ray crystallographic analysis, structure IV has been assigned to this alkaloid.
Subject(s)
Alkaloids/isolation & purification , Drugs, Chinese Herbal/analysis , Homosteroids/isolation & purification , Chemical Phenomena , ChemistryABSTRACT
Two steroidal alkaloids were isolated from the bulb of Fritillaria pallidiflora Schreb by column chromatographic techniques. One of them was identified as known alkaloid sinpeinine A, another alkaloid was found to be a new compound named yibeinoside A, which is the Sinpeinine-3-O-beta-glucoside. Its structure was confirmed on the basis of chemical and spectral data (IR, MS, 1HNMR, 13CNMR).
Subject(s)
Cevanes/isolation & purification , Drugs, Chinese Herbal/chemistry , Glucosides/isolation & purification , Cevanes/chemistry , Glucosides/chemistryABSTRACT
A new steroid alkaloid glucoside, pingbeidinoside, was isolated from the stem and leaf of Fritillaria ussuriensis Maxim by column chromatographic techniques. On the basis of the IR, MS, 1HNMR and 13CNMR spectra of pingpeidinoside and products of its transformation, the structure of pingbeidinoside has been established as 3 beta,16 alpha,20-trihydroxy-delta 5-22,26-epiminocholestane-25-O-beta-D- glucoside.