Methanol → 5-((2-fluoro-4-iodophenyl)amino)-6,8-dimethyl-1-(3-(piperazine-1-carbonyl)phenyl)pyrido[4,3-d]pyrimidine-2,4,7(1H,3H,6H)-trione

Aluminium chloride (1.57 g, 11.76 mmol) was added in small portions to a solution of crude tert-butyl 4-(3-(5-((2-fluoro-4-iodophenyl)amino)-3-(4-methoxybenzyl)-6,8-dimethyl-2,4,7-trioxo-3,4,6,7-tetrahydropyrido[4,3-d]pyrimidin-1(2H)-yl)benzoyl)piperazine-1-carboxylate (1 g, 1.176 mmol) in Anisole (5 ml). The resulting reaction mixture was stirred at room temperature for 17 h, methanol (10 ml) was added dropwise and the resulting mixture was concentrated in vacuo. Aq. ammonia was added to the resulting residue and the reaction mixture was extracted several times with DCM. The combined organic phase was washed with brine and dried over sodium sulphate. The solvent was evaporated in vacuo and the residue was purified by column chromatography over neutral alumina to afford the titled compound (23) (0.113 g).

1. customThe resulting reaction mixture
2. concentrationthe resulting mixture was concentrated in vacuo
3. additionAq. ammonia was added to the resulting residue
4. extractionthe reaction mixture was extracted several times with DCM
5. washThe combined organic phase was washed with brine
6. dry with materialdried over sodium sulphate
7. customThe solvent was evaporated in vacuo
8. customthe residue was purified by column chromatography over neutral alumina

ORDレコード

ord-ef84ce778f224a6fb6577c83cf54a201

出典データセット

uspto-grants-2016_08

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09428499B2