Dichloromethane → (3s,5s,6s)-5-(Methoxycarbonyl)-1-methyl-6-[(4-phenyl-3,6-dihydropyridin-1(2h)-yl)carbonyl]piperidin-3-yl piperidine-1-carboxylate

HRID 535065Notes

Reaction equation

[OH:1][C@@H:2]1[CH2:7][N:6]([CH3:8])[C@H:5]([C:9]([N:11]2[CH2:16][CH:15]=[C:14]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:13][CH2:12]2)=[O:10])[C@@H:4]([C:23]([O:25][CH3:26])=[O:24])[CH2:3]1.C(Cl)Cl.C1N=CN([C:35]([N:37]2[CH:41]=N[CH:39]=[CH:38]2)=[O:36])C=1.N1CCC[CH2:44][CH2:43]1>>[N:37]1([C:35]([O:1][C@H:2]2[CH2:3][C@H:4]([C:23]([O:25][CH3:26])=[O:24])[C@@H:5]([C:9]([N:11]3[CH2:12][CH:13]=[C:14]([C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=4)[CH2:15][CH2:16]3)=[O:10])[N:6]([CH3:8])[CH2:7]2)=[O:36])[CH2:38][CH2:39][CH2:44][CH2:43][CH2:41]1

Participants

Reactant 4

HCID 6344Dichloromethane

HCID 8082Piperidine

HCID 682631,1'-Carbonyldiimidazole

HCID 67304114Methyl (2s,3s,5s)-5-hydroxy-1-methyl-2-[(4-phenyl-3,6-dihydropyridin-1(2h)-yl)carbonyl]piperidine-3-carboxylate

Product 1

HCID 67304225(3s,5s,6s)-5-(Methoxycarbonyl)-1-methyl-6-[(4-phenyl-3,6-dihydropyridin-1(2h)-yl)carbonyl]piperidin-3-yl piperidine-1-carboxylate

Procedure

A solution of methyl (2S,3S,5S)-5-hydroxy-1-methyl-2-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]piperidine-3-carboxylate (72 mg, 0.00020 mol) in methylene chloride (2.0 mL, 0.031 mol) was treated with N,N-carbonyldiimidazole (50 mg, 0.0003 mol) at rt for 2 h. To the mixture was added piperidine (0.060 mL, 0.00060 mol). After stirred at rt overnight, the mixture was concentrated to dry and used directly in next step.

Workup

concentrationthe mixture was concentrated
customto dry

Sources & evidence

ORD record: ord-3565530fd887469592505a91a2d3f55e
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08853243B2

Reaction notes

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