Reaction equation
[C:1](OCC1C=CC=CC=1)(=O)[CH:2]([CH3:4])O.[N:14](C(OCC)=O)=NC(OCC)=O.[CH2:26]([O:34][C:35]1[CH:40]=[CH:39][C:38]([C:41]2[CH:46]=[CH:45][C:44]([OH:47])=[CH:43][N:42]=2)=[C:37]([F:48])[CH:36]=1)[CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH3:33]>>[CH2:26]([O:34][C:35]1[CH:40]=[CH:39][C:38]([C:41]2[CH:46]=[CH:45][C:44]([O:47][CH:2]([C:1]#[N:14])[CH3:4])=[CH:43][N:42]=2)=[C:37]([F:48])[CH:36]=1)[CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH3:33]Participants
4
Procedure
Optically active benzyl lactate is etherified by means of diethyl azodicarboxylate (DEAD)/triphenylphosphine with 2-(4-octyloxy-2-fluorophenyl)-5-hydroxypyridine (prepared in accordance with Example 1) and the benzyl group is then split off hydrogenolytically. The acid so obtained is converted as usual into the nitrile (oxalyl chloride, ammonia, thionyl chloride). Optically active 2-(4-octyloxy-2-fluorophenyl)-5-(1-cyanoethoxy)-pyridine is obtained.
Workup
- customthe benzyl group is then split off hydrogenolytically
- customThe acid so obtained
Sources & evidence
- ORD record
- ord-c13875652fd042b99e09cb22bf04964e
- Source dataset
- uspto-grants-1993_04
- Patent number
- US05204476
Linked notes
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