Phytochemistry 2003-02-01

Two chromone-secoiridoid glycosides and three indole alkaloid glycosides from Neonauclea sessilifolia.

Atsuko Itoh, Takao Tanahashi, Naotaka Nagakura, Toyoyuki Nishi

Index: Phytochemistry 62(3) , 359-69, (2003)

Full Text: HTML

Abstract

From the dried roots of Neonauclea sessilifolia, two new chromone-secoiridoid glycosides, sessilifoside and 7"-O-beta-D-glucopyranosylsessilifoside, and three novel indole alkaloid glycosides, neonaucleosides A, B, and C, were isolated along with the main known glycosides, 5-hydroxy-2-methylchromone-7-O-beta-D-apiofuranosyl-(1-->6)-beta-D-glucopyranoside, sweroside, loganin, grandifloroside, and quinovic acid 3 beta-O-beta-D-quinovopyranoside-28-O-beta-D-glucopyranoside. The structures of these new glycosides were determined by spectroscopic and chemical means. Neonaucleoside A and its C-3 epimer were prepared from secologanin and tryptamine.

Related Compounds

  • Secologanin

Related Articles:

The leaf epidermome of Catharanthus roseus reveals its biochemical specialization.

2008-03-01

[Plant Cell 20(3) , 524-42, (2008)]

2,4-D and alkaloid accumulation in periwinkle cell suspensions.

1994-01-01

[Biochimie 76(5) , 410-6, (1994)]

Indole alkaloid biosynthesis in Catharanthus roseus: new enzyme activities and identification of cytochrome P450 CYP72A1 as secologanin synthase.

2000-12-01

[Plant J. 24 , 797, (2000)]

Strategies for engineering plant natural products: the iridoid-derived monoterpene indole alkaloids of Catharanthus roseus.

2012-01-01

[Meth. Enzymol. 515 , 189-206, (2012)]

Secologanin synthase which catalyzes the oxidative cleavage of loganin into secologanin is a cytochrome P450.

2000-01-01

[Phytochemistry 53(1) , 7-12, (2000)]

More Articles...