• Corpus ID: 53615078

Isolation and NMR spectral assignments of an ent-kaurane glycoside rebaudioside F, a sweet principle of Stevia rebaudiana.

@article{Chaturvedula2011IsolationAN,
  title={Isolation and NMR spectral assignments of an ent-kaurane glycoside rebaudioside F, a sweet principle of Stevia rebaudiana.},
  author={Venkata Sai Prakash Chaturvedula and Indra Prakash},
  journal={International Journal of Medicinal and Aromatic Plants},
  year={2011},
  volume={1},
  pages={319-325}
}
The complete 1 H and 13 C NMR assignments for the diterpene glycoside 13-((2-O-β-D-xylopyranosyl-3-O- - D-glucopyranosyl-β-D-glucopyranosyl)oxy)-ent-kaur-16-en-19-oic acid β-D-glucopyranosyl ester (rebaudioside F) is o- lated from Stevia rebaudiana was achieved by the extensive 2D NMR (COSY, HSQC, HMBC) and mass spectral data. Further, hydrolysis of reba udioside F were performed using acid and enzymatic studies to identify their aglycone and sugar residues. 
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ISOLATIO N AND NMR SPECTRAL ASSIGNMENTS OF STEVIOLBIOSIDE AND STEVI OSIDE
The complete 1 H and 13 C NMR assignments of the two diterpene glycosides , 13 - [(2 - O - β - D - glucopyranosyl - β - D glucopyranosyl)oxy] - ent - kaur - 16 - en - 19 - oic acid (steviolbioside )
ISOLATION AND NMR SPECTRAL ASSIGNMENTS OF STEVIOLBIOSIDE AND STEVIOSIDE
The complete H and C NMR assignments of the two diterpene glycosides, 13-[(2-O-b-D-glucopyranosyl-b-Dglucopyranosyl)oxy]-ent-kaur-16-en-19-oic acid (steviolbioside) and
Additional Minor Diterpene Glycosides from Stevia rebaudiana
TLDR
From the commercial extract of the leaves of Stevia rebaudiana, two additional new diterpenoid glycosides were isolated and their structures were characterized as ent-kaur-16-en-19-oic acid β-D-glucopyranosyl ester.
Synthesis of ent-Kaurane Diterpene Monoglycosides
Synthesis of two ent-kaurane diterpene glycosides, steviol 19-O-β-D-glucopyranosiduronic acid (steviol glucuronide, 5 ), and 13-hydroxy ent-kaur-16-en-19-oic acid-β-D-glucopyranosyl ester (7) has
A New Diterpene Glycoside from Stevia rebaudiana
From the commercial extract of the leaves of Stevia rebaudiana, a new diterpene glycoside was isolated besides the known steviol glycosides including stevioside, rebaudiosides A-F, rubusoside and
Two Minor Diterpene Glycosides from the Leaves of Stevia rebaudiana
TLDR
Two new new diterpene glycosides were isolated from the leaves of Stevia rebaudiana, along with the known steviol glycoside stevioside, rebaudiosides A-F and dulcoside A.
Diterpene Glycosides from Stevia rebaudiana
Three novel diterpene glycosides were isolated for the first time from the commercial extract of the leaves of Stevia rebaudiana, along with several known steviol glycosides, namely stevioside,
Structures of the novel α-glucosyl linked diterpene glycosides from Stevia rebaudiana.
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