Compound | Column solvent | Yield (mg) | RF value | Retention time (min) |
---|---|---|---|---|
1 | 20Â % ethyl acetate in DCM | 13 | 0.53 | 2.779 |
2 | 26Â % ethyl acetate in DCM | 16 | 0.44 | 2.753 |
3 | 38Â % ethyl acetate in DCM | 10 | 0.36 | 2.705 |
4 | 50Â % ethyl acetate in DCM | 11 | 0.50 | 2.679 |
5 | 15Â % chloroform acetonea | 18 | 0.33 | 2.522 |
6 | 45Â % chloroform acetonea | 14 | 0.26 | 2.954 |