Carbon tetrabromide → HCID 68524254, compound

HRID 2247733Notes

Reaction equation

[CH2:1]([C:3]1[CH:4]=[C:5]([CH2:28]O)[S:6][C:7]=1[C:8]1[N:12]=[C:11]([C:13]2[CH:18]=[CH:17][C:16]([O:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[O:26][CH3:27])=[CH:15][CH:14]=2)[O:10][N:9]=1)[CH3:2].C(Br)(Br)(Br)Br.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.Cl.[NH:55]1[CH2:58][CH:57]([C:59]([O:61][CH3:62])=[O:60])[CH2:56]1.C(N(CC)C(C)C)(C)C>>[CH2:1]([C:3]1[CH:4]=[C:5]([CH2:28][N:55]2[CH2:58][CH:57]([C:59]([O:61][CH3:62])=[O:60])[CH2:56]2)[S:6][C:7]=1[C:8]1[N:12]=[C:11]([C:13]2[CH:14]=[CH:15][C:16]([O:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[O:26][CH3:27])=[CH:17][CH:18]=2)[O:10][N:9]=1)[CH3:2]

Participants

Reactant 5

HCID 11205Carbon tetrabromide

HCID 11776Triphenylphosphine

HCID 81531Diisopropylethylamine

HCID 21100040Methyl azetidine-3-carboxylate hydrochloride

HCID 68524621HCID 68524621, compound

Product 1

HCID 68524254HCID 68524254, compound

Procedure

The crude product of the title compound was synthesized by conducting the reaction similar to that mentioned in Example 1 (1f) using (4-ethyl-5-{5-[4-(2-methoxyphenoxy)phenyl]-1,2,4-oxadiazol-3-yl}-2-thienyl)methanol (0.14 g, 0.35 mmol) that was obtained in Example 21 (21b), carbon tetrabromide (0.17 g, 0.53 mmol), triphenylphosphine (0.14 g, 0.53 mmol), methyl 3-azetidinecarboxylate hydrochloride (80 mg, 0.53 mmol), and N,N-diisopropylethylamine (0.18 mL, 1.1 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 (2:5 to 1:2) as the eluent to afford the title compound (89 mg) in a yield of 50% as a colourless oily product.

Workup

customthe reaction similar to

Sources & evidence

ORD record: ord-c59d282d2ac84cb38cb4eee131954282
Source dataset: uspto-grants-2010_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07687491B2

Reaction notes

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