Technology Process of benzyl oleanolate 3β-O-2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl-(1 → 3)-2,4-di-O-acetyl-α-L-rhamnopyranosyl-(1 → 2)-3,4-di-O-benzoyl-β-D-xylopyranoside
There total 1 articles about benzyl oleanolate 3β-O-2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl-(1 → 3)-2,4-di-O-acetyl-α-L-rhamnopyranosyl-(1 → 2)-3,4-di-O-benzoyl-β-D-xylopyranoside which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
2-methyl-5-tert-butylphenyl 2,4-di-O-acetyl-1-thio-α-L-rhamnopyranoside; 2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyltrichloroacetimidate;
With
trimethylsilyl trifluoromethanesulfonate;
In
dichloromethane;
at -78 ℃;
for 0.5h;
Molecular sieve;
Inert atmosphere;
benzyl 3-O-3,4-di-O-benzoyl-β-D-xylopyranosyloleanolate;
With
N-iodo-succinimide;
In
dichloromethane;
at -10 ℃;
for 1h;
Molecular sieve;
Inert atmosphere;
DOI:10.1016/j.ejmech.2013.04.016
