EI-1941-2 → HCID 11831537, compound
Reaction equation
[CH3:1][CH2:2][CH2:3][C@H:4]1[O:17][C:15](=[O:16])[C:7]2[C@@H:8]([OH:14])[C@@H:9]3[O:13][C@@H:10]3[C:11](=[O:12])[C:6]=2[CH2:5]1>CO>[CH3:1][CH2:2][CH2:3][CH:4]1[O:17][C:15](=[O:16])[C:7]2[CH:8]([OH:14])[CH:9]([OH:13])[CH2:10][C:11](=[O:12])[C:6]=2[CH2:5]1Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
EI-1941-3 is prepared from EI-1941-2 stored at room temperature in the dry state. EI-1941-2 (80 mg) which had been stored was dissolved in 4 ml of methanol. The solution was divided into two portions (2 ml each) and each portion was passed through HPLC column (D-ODS-5-B S-5 120A, YMC). Elution was carried out with 30% acetonitrile at a flow rate of 20 ml/min to separate EI-1941-2-containing fractions and EI-1941-3-containing fractions. The EI-1941-3-containing fractions were combined and concentrated to dryness under reduced pressure to give 13 mg of EI-1941-3.
Workup
- customstored at room temperature in the dry state