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US 10,538,547 B2Granted
Mangiferin-6-O-calcium salt and preparation process thereof
AssigneeChangzhou Deze Medical Science Co., Ltd
InventorsHoulei Teng, Wei Wu
Life of this patent
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Abstract
The present invention provides a mangiferin-6-O-calcium salt and a preparation process thereof. In addition, use of the mangiferin-6-O-calcium salt as defined in claim 1 as an intermediate in the preparation of a mangiferin-6-O-berberine salt is also provided.
Claims15
A mangiferin-6-O-calcium salt, wherein the mangiferin-6-O-calcium salt has a structure as defined in the following formula (I):
- wherein a spectrum data of the mangiferin-6-O-calcium salt is as follows:
- 13CNMR (400 MHz, DMSO-d6) (δppm):
- 161.62 (C-1), 106.97 (C-2), 163.62 (C-3), 93.25 (C-4), 155.98 (C-4a), 100.53 (C-4b), 100.89 (C-5), 164.74 (C-6), 147.10 (C-7), 103.27 (C-8), 106.22 (C-8a), 153.52 (C-8b), 177.79 (C-9), 73.51 (C-1′), 70.34 (C-2′), 79.14 (C-3′), 70.34 (C-4′), 81.37 (C-5′), 60.27 (C-6′).
Dependencies are inferred from the claim text.