Resin glycosides. XXV. Multifidins I and II, new jalapins, from the seed of Quamoclit x multifida.
Alkaline hydrolysis of the ether-soluble resin glycoside fraction of seeds of Quamoclit (Q.) x multifida, a hybrid between Q. pinnata and Q. coccinea, gave new glycosidic acids, multifidinic acids A and B, along with two known glycosidic acids, quamoclinic acid A and operculinic acid A, and three organic acids, (2S)-2-methylbutyric acid, n-decanoic acid and n-dodecanoic acid. Further, as major ether-soluble resin glycosides, new jalapins named multifidins I and II, were isolated accompanied by quamoclins I-IV, which were previously obtained from seeds of Q. pinnata. The structures of multifidins I and II, and multifidinic acids A and B have been determined on the basis of chemical and spectral data.
Ono
M
M
Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan.
Honda
F
F
Karahashi
A
A
Kawasaki
T
T
Miyahara
K
K
D002087:Butyrates / Q000737:chemistry; D020148:Butyric Acid; D002240:Carbohydrate Sequence; D003652:Decanoic Acids / Q000302:isolation & purification; D006027:Glycosides / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D007850:Lauric Acids / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification*; D010936:Plant Extracts / Q000737:chemistry; D010944:Plants / Q000737:chemistry*; D012116:Resins, Plant; D012210:Rhamnose / Q000737:chemistry; D012639:Seeds / Q000737:chemistry
D002087:Butyrates; D003652:Decanoic Acids; D006027:Glycosides; D007783:Lactones; D007850:Lauric Acids; D009844:Oligosaccharides; D010936:Plant Extracts; D012116:Resins, Plant; C110558:multifidin I; C110559:multifidin II; D020148:Butyric Acid; C030358:lauric acid; C031071:decanoic acid; D012210:Rhamnose