Propylphosphonic anhydride → 4-chloro-N-[5-chloro-2-(2,3-dihydro-pyrido[3,2-b][1,4]oxazine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

HRID 419083Notes

Reaction equation

HRID 419083 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:11][S:12]([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([C:22]([F:25])([F:24])[F:23])[CH:16]=2)(=[O:14])=[O:13])[C:5]([C:8](O)=[O:9])=[N:6][CH:7]=1.[O:26]1[CH2:31][CH2:30][NH:29][C:28]2[N:32]=[CH:33][CH:34]=[CH:35][C:27]1=2.C(P1(=O)OP(CCC)(=O)OP(CCC)(=O)O1)CC>CCN(CC)CC>[Cl:21][C:18]1[CH:19]=[CH:20][C:15]([S:12]([NH:11][C:4]2[C:5]([C:8]([N:29]3[CH2:30][CH2:31][O:26][C:27]4[CH:35]=[CH:34][CH:33]=[N:32][C:28]3=4)=[O:9])=[N:6][CH:7]=[C:2]([Cl:1])[CH:3]=2)(=[O:13])=[O:14])=[CH:16][C:17]=1[C:22]([F:24])([F:23])[F:25]

Participants

4

Reactant 2

HCID 111923Propylphosphonic anhydrideHCID 666489223,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine 5-chloro-3-(4-chloro-3-(trifluoromethyl)phenylsulfonamido)picolinic acid

Product 1

HCID 441771844-chloro-N-[5-chloro-2-(2,3-dihydro-pyrido[3,2-b][1,4]oxazine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

Reagents, catalysts & solvents 1

HCID 8471TriethylamineSolvent

Procedure

3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine 5-chloro-3-(4-chloro-3-(trifluoromethyl)phenylsulfonamido)picolinic acid, T3P, and Et3N were reacted according to the procedure D to provide the title compound. HPLC purification provided 4-chloro-N-[5-chloro-2-(2,3-dihydro-pyrido[3,2-b][1,4]oxazine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide; Reverse phase HPLC gradient acetonitrile 0.1% TFA 20-95% in 4 min: 2.871 min; MS m/z 533.1 (M+H).

Sources & evidence

ORD record
ord-f9a6d7be3a544f30aa45ab33b80ab8f1
Source dataset
uspto-grants-2012_01
Patent number
US08093247B2

Reaction notes

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