Dichloromethane → HCID 86717250, compound

Compound 10 (160 mg, 0.00024 mol) was dissolved in dry MeOH (2.6 mL) and dry CH2Cl2 (1.6 mL), and NaOMe (1M, 24 μL, 24 μmol) was added. The reaction was monitored by TLC (heptane:EtOAc 1:1 and D:M 5:1). When the reaction was complete, the mixture was neutralized with Duolite C436 until pH 7, filtered and washed with MeOH. The filtered solution was concentrated under reduced pressure. The residue was purified by flash chromatography (Eluent: CH2Cl2:MeOH, 5:1) to give pure 11 (74.1 mg, 75%). 1H NMR in CDCl3 δ 4.72 (d, 2H, J=9.7 Hz, H-1, H-1′), 3.95 (br s, 2H, H-4, H-4′), 3.84 (t, 2H, J=9.8 Hz, H-2, H-2′), 3.74 (dd, 2H, J=11.47 Hz, 7.23 Hz, H-6, H-6′), 3.64 (dd, 2H, J=11.48 Hz, 4.72 Hz, H-6, H6′), 3.60-3.55 (ddd, 2H, 7.15 Hz, 4.67 Hz, 0.93 Hz, H-5, H-5′), 3.36 (dd, 2H, J=10 Hz, 3.05 Hz, H-3, H-3′).

1. filtrationfiltered
2. washwashed with MeOH
3. concentrationThe filtered solution was concentrated under reduced pressure
4. customThe residue was purified by flash chromatography (Eluent: CH2Cl2:MeOH, 5:1)

ORD record

ord-60b533b6aad040df8ba3518835469075

Source dataset

uspto-grants-2016_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09243021B2