HCID 10685532, compound → HCID 18387246, compound
Reaction equation
C[C:2]1[C:3]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[C:4]([C:13]([O:15]CC)=[O:14])[C:5]([C:8]([O:10]CC)=[O:9])=[N:6][CH:7]=1.C1(C2C=CN=C(C(OCC)=O)C=2C(OCC)=O)C=CC=CC=1>>[C:18]1([C:3]2[CH:2]=[CH:7][N:6]=[C:5]([C:8]([OH:10])=[O:9])[C:4]=2[C:13]([OH:15])=[O:14])[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1Participants
3
Procedure
In place of diethyl 5-methyl-4-phenyl-2,3-pyridinedicarboxylate in Step 1 in Reference Example 33, diethyl 4-phenyl-2,3-pyridinedicarboxylate (see Japanese Patent Laid-Open No. 62-106081) was reacted and treated in the same manner as in Step 1 in Reference Example 33, to obtain 4-phenyl-2,3-pyridinedicarboxylic acid as pale yellow crystals.
Workup
- custom62-106081) was reacted
- additiontreated in the same manner as in Step 1 in Reference Example 33
Sources & evidence
- ORD record
- ord-4d3ddd3d2b0f4bcea3e17c8c1914d5c0
- Source dataset
- uspto-grants-1998_07
- Patent number
- US05786352
Reaction notes
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