Ammonia → (2S,4R)-4-hydroxypyrrolidine-2-carboxamide
Reaction equation
C([O:8][C:9]([C@@H:11]1[CH2:15][C@@H:14]([OH:16])[CH2:13][NH:12]1)=O)C1C=CC=CC=1.[NH3:17]>>[OH:16][C@H:14]1[CH2:13][NH:12][C@H:11]([C:9]([NH2:17])=[O:8])[CH2:15]1Participants
3
Procedure
A solution of (2S,4R)-4-hydroxy-pyrrolidine-2-carboxylic acid benzyl ester (1 g) in 880 ammonia (5 ml) was stirred for 18 h then evaporated and triturated with Et2O to give the title compound as a white solid. 1H-NMR (d6-DMSO, 400 MHz): 9.15 (s, br, 1H), 8.04 (s, 1H), 7.63 (s, 1H), 5.56 (s, 1H), 4.40 (s, 1H), 4.27-4.16 (m, 1H), 3.27 (d, 1H), 3.02 (d, 1H), 2.33 -2.19 (m, 1H), 1.89-1.76 (m, 1H).
Workup
- customthen evaporated
- customtriturated with Et2O
Sources & evidence
- ORD record
- ord-5fcc916ae1f741b1937f77017c42fb63
- Source dataset
- uspto-grants-2013_01
- Patent number
- US08357707B2
Reaction notes
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