3-Chloro-2-cyclopropylisonicotinic acid ethyl ester → HCID 71239378, compound
Reaction equation
[CH2:1]([O:3][C:4]([C:6]1[O:14][C:9]2N=[N:11][CH:12]=[CH:13][C:8]=2[C:7]=1[OH:15])=[O:5])[CH3:2].C(OC(=O)C1C=CN=[C:22]([CH:26]2[CH2:28][CH2:27]2)C=1Cl)C>>[CH2:1]([O:3][C:4]([C:6]1[O:14][C:9]2=[C:22]([CH:26]3[CH2:28][CH2:27]3)[N:11]=[CH:12][CH:13]=[C:8]2[C:7]=1[OH:15])=[O:5])[CH3:2]Participants
3
Procedure
This compound was prepared using a method analogous to that of 5-hydroxyfuro[2,3-c]pyridazine-6-carboxylic acid ethyl ester (A.2.3.1), 3-chloro-2-cyclopropylisonicotinic acid ethyl ester replacing 3-chloropyridazine-4-carboxylic acid ethyl ester. Purification by CC (KP-SIL™ from Biotage) using Hept/EtOAc (7/3) gives the desired product as colorless oil;
Workup
- customThis compound was prepared
- customPurification by CC (KP-SIL™ from Biotage)
Sources & evidence
- ORD record
- ord-978fe5da0c004bcd98c03a56076e574c
- Source dataset
- uspto-grants-2015_12
- Patent number
- US09221832B2
Reaction notes
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