反应 #3730293
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08383644B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: (S)-2-({(3S,8S)-3-[4-(3,4-dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl}-amino)-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester (30 mg) in DCM (3 mL), 4,4-difluoro-piperidine-1-carbonyl chloride (5.0 eq, prepared according to General Procedure AD) according to General Procedure H and purified over silica (hexanes to 1:1 hexanes EtOAc to 1:1 hexanes EtOAc+1% MeOH). The resulting compound was hydrolyzed according to General Procedure B to give the title compound (8 mg). LCMS (m/z) 886. purified over silica (hexanes to 1:1 hexanes EtOAc to 1:1 hexanes EtOAc+1% MeOH)
来源 ID: ord-1c274c5083064ee8b1dbe56af89ab2b0