| 摘要 |
Partially acylated beta -cyclodextrin ( beta -CD) derivs. of formula (I) are new: R = H or R1; R1 = acetyl, propionyl, butyryl, 2-alkoxyacetyl,2-chloroacetyl, 2-fluoroacetyl, 2-N-acetylaminoacetyl, methacryloyl or acryloyl; R1 gps. are randomly distributed; D.S. for R1 (measured by 1H-NMR spectroscopy) = 0.30 - 1.20. |
