Cesium carbonate → N-[[(3S,3aS)-7-(2-methylsulfonylphenyl)-1-oxo-3a,4-dihydro-3H-[1,3]oxazolo[4,3-c][1,4]benzoxazin-3-yl]methyl]-5-chlorothiophene-2-carboxamide

HRID 1050224Notes

Reaction equation

HRID 1050224 reaction equation
[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][CH2:10][C@H:11]2[C@H:19]3[N:14]([C:15]4[CH:23]=[CH:22][C:21](B5OC(C)(C)C(C)(C)O5)=[CH:20][C:16]=4[O:17][CH2:18]3)[C:13](=[O:33])[O:12]2)=[O:8])=[CH:4][CH:3]=1.[CH3:34][S:35]([C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][C:39]=1Br)(=[O:37])=[O:36].C(=O)([O-])[O-].[Cs+].[Cs+]>[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][CH2:10][C@H:11]2[C@H:19]3[N:14]([C:15]4[CH:23]=[CH:22][C:21]([C:39]5[CH:40]=[CH:41][CH:42]=[CH:43][C:38]=5[S:35]([CH3:34])(=[O:37])=[O:36])=[CH:20][C:16]=4[O:17][CH2:18]3)[C:13](=[O:33])[O:12]2)=[O:8])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 190318Benzene, 1-bromo-2-(methylsulfonyl)-HCID 1317360535-chloro-N-(((3S,3 aS)-1-oxo-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,3a,4-tetrahydrobenzo[b]oxazolo[3,4-d][1,4]oxazin-3-yl)methyl)thiophene-2-carboxamide

Product 1

HCID 118574663N-[[(3S,3aS)-7-(2-methylsulfonylphenyl)-1-oxo-3a,4-dihydro-3H-[1,3]oxazolo[4,3-c][1,4]benzoxazin-3-yl]methyl]-5-chlorothiophene-2-carboxamideYield 35.2%

Reagents, catalysts & solvents 1

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalyst

Procedure

Using compound 5-chloro-N-(((3S,3aS)-1-oxo-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,3a,4-tetrahydrobenzo[b]oxazolo[3,4-d][1,4]oxazin-3-yl)methyl)thiophene-2-carboxamide (the product of step (b) in Example 35) (50 mg, 0.102 mmol), o-methylsulfonylbromobenzene (29 mg, 0.122 mmol), tetrakis (triphenylphosphine) palladium (12 mg, 0.010 mmol), and cesium carbonate (66 mg, 0.204 mmol) as starting materials, preparation following the method as described in Example 35 (c) afforded off-white solid 19 mg, yield: 35.2%.

Workup

  1. custommaterials, preparation

Sources & evidence

ORD record
ord-63b99377bf65496fbe3f2ee9b3c54596
Source dataset
uspto-grants-2016_07
Patent number
US09382265B2

Reaction notes

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