Carbon tetrabromide → Methyl 1-({5-[5-(3-chloro-4-isobutylphenyl)-1,2,4-oxadiazol-3-yl]pyridin-2-yl}methyl)azetidine-3-carboxylate

HRID 2247765Notes

Reaction equation

HRID 2247765 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][C:20]([CH2:23]O)=[N:21][CH:22]=3)[N:13]=2)[CH:5]=[CH:6][C:7]=1[CH2:8][CH:9]([CH3:11])[CH3:10].C(Br)(Br)(Br)Br.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.Cl.[NH:50]1[CH2:53][CH:52]([C:54]([O:56][CH3:57])=[O:55])[CH2:51]1.C(N(CC)C(C)C)(C)C>>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][C:20]([CH2:23][N:50]4[CH2:53][CH:52]([C:54]([O:56][CH3:57])=[O:55])[CH2:51]4)=[N:21][CH:22]=3)[N:13]=2)[CH:5]=[CH:6][C:7]=1[CH2:8][CH:9]([CH3:11])[CH3:10]

Participants

6

Reactant 5

HCID 11205Carbon tetrabromideHCID 11776TriphenylphosphineHCID 81531DiisopropylethylamineHCID 21100040Methyl azetidine-3-carboxylate hydrochlorideHCID 68524712(5-(5-(3-Chloro-4-isobutylphenyl)-1,2,4-oxadiazol-3-yl)pyridin-2-yl)methanol

Product 1

HCID 68521928Methyl 1-({5-[5-(3-chloro-4-isobutylphenyl)-1,2,4-oxadiazol-3-yl]pyridin-2-yl}methyl)azetidine-3-carboxylate

Procedure

The crude product of the title compound was synthesized by conducting the reaction similar to that mentioned in Example 23 (23g) using {5-[5-(3-chloro-4-isobutylphenyl)-1,2,4-oxadiazol-3-yl]pyridin-2-yl}methanol (0.18 g, 0.54 mmol) that was obtained in Example 26 (26a), carbon tetrabromide (0.36 g, 1.1 mmol), triphenylphosphine (0.28 g, 1.1 mmol), methyl 3-azetidinecarboxylate hydrochloride (0.12 g, 0.81 mmol), and N,N-diisopropylethylamine (0.28 mL, 1.6 mmol). Subsequently, the crude product of the title compound thus obtained was purified by chromatography on a silica gel column using a mixed solvent of ethyl acetate and hexane (2:1 to 3:1) as the eluent to afford the title compound (0.15 g) in a yield of 61% as a white crystalline solid.

Workup

  1. customthe reaction similar to

Sources & evidence

ORD record
ord-c9044d7498024de3a0d4b6ba509377ad
Source dataset
uspto-grants-2010_03
Patent number
US07687491B2

Reaction notes

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