Triethylamine → HCID 131728676, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:15]([C:16](=[O:18])[CH:17]=1)=[C:14]([O:19][CH3:20])[CH:13]=[C:12]([O:21][CH3:22])[C:11]=2[C@@H:23]1[CH2:28][CH2:27][N:26]([C:29]2[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][CH:30]=2)[CH2:25][C@H:24]1[OH:37].CS(Cl)(=O)=O.C(N(CC)CC)C.[C:50]([O-])(=[O:52])[CH3:51].[Na+]>>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:15]([C:16](=[O:18])[CH:17]=1)=[C:14]([O:19][CH3:20])[CH:13]=[C:12]([O:21][CH3:22])[C:11]=2[C@@H:23]1[CH2:28][CH2:27][N:26]([C:29]2[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][CH:30]=2)[C@H:25]1[CH2:24][O:37][C:50](=[O:52])[CH3:51]Participants
5
Procedure
Compound of example 122 (1.7 g, 3.2 mmol) was subjected to ring contraction as described in example 3, method A using methanesulfonyl chloride (0.448 g, 0.3 mL, 3.9 mmol), triethylamine (0.66 g, 0.95 mL, 6.5 mmol). The sulfonyl ester was treated with anhydrous sodium acetate (1.06 g, 13 mmol) to furnish the title compound.
Sources & evidence
- ORD record
- ord-fa344e092cfa484aa622aa9a07c10cf8
- Source dataset
- uspto-grants-2011_02
- Patent number
- US07884127B2
Reaction notes
Loading…