Triethylamine → Methyl(3R,4R)-4-{[(benzyloxy)carbonyl]amino}-1-{2-[(methylsulfonyl)oxy]ethyl}piperidine-3-carboxylate

HRID 255196Notes

Reaction equation

HRID 255196 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C@@H:12]1[CH2:17][CH2:16][N:15]([CH2:18][CH2:19][OH:20])[CH2:14][C@H:13]1[C:21]([O:23][CH3:24])=[O:22])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:25][S:26](Cl)(=[O:28])=[O:27].C(N(CC)CC)C.CS(OCCN1CCC(NC(OC(C)(C)C)=O)CC1)(=O)=O>>[CH2:1]([O:8][C:9]([NH:11][C@@H:12]1[CH2:17][CH2:16][N:15]([CH2:18][CH2:19][O:20][S:26]([CH3:25])(=[O:28])=[O:27])[CH2:14][C@H:13]1[C:21]([O:23][CH3:24])=[O:22])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 568344782-(4-((Tert-butoxycarbonyl)amino)piperidin-1-yl)ethyl methanesulfonateHCID 66775250Methyl(3R,4R)-4-{[(benzyloxy)carbonyl]amino}-1-(2-hydroxyethyl)piperidine-3-carboxylate2×

Product 1

HCID 86642605Methyl(3R,4R)-4-{[(benzyloxy)carbonyl]amino}-1-{2-[(methylsulfonyl)oxy]ethyl}piperidine-3-carboxylate

Procedure

Methyl (3R,4R)-4-{[(benzyloxy)carbonyl]amino}-1-(2-hydroxyethyl)piperidine-3-carboxylate (Intermediate 41) (650 mg, 1.93 mmol) was reacted with methanesulfonyl chloride (0.18 mL, 2.32 mmol) in the presence of triethylamine (0.38 mL, 2.7 mmol) as described for Intermediate 6. The crude product was used without delay for the next step.

Sources & evidence

ORD record
ord-873ba5ef64744572b3c98da6c827581b
Source dataset
uspto-grants-2011_01
Patent number
US07875715B2

Reaction notes

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