HCID 66562603, compound → HCID 86717849, compound
Reaction equation
[C:1]([O:5][CH:6]([C:12]1[C:16]([C:17]2[CH:22]([CH3:23])[CH2:21][CH2:20][CH2:19][C:18]=2[CH3:24])=[C:15]([CH3:25])[S:14][C:13]=1[CH3:26])[C:7]([O:9]CC)=[O:8])([CH3:4])([CH3:3])[CH3:2].C(OC(C1C(C2CCC(C)(C)CC=2)=C(C)SC=1C)C(O)=O)(C)(C)C>>[C:1]([O:5][CH:6]([C:12]1[C:16]([C:17]2[CH:22]([CH3:23])[CH2:21][CH2:20][CH2:19][C:18]=2[CH3:24])=[C:15]([CH3:25])[S:14][C:13]=1[CH3:26])[C:7]([OH:9])=[O:8])([CH3:3])([CH3:4])[CH3:2]Participants
3
Procedure
Using the procedure described in example 29, step 3, ethyl tert-butoxy-[4-(2,6-dimethyl-cyclohex-1-enyl)-2,5-dimethyl-thiophen-3-yl]-acetate (53b) (90 mg, 0.24 mmol) is converted, after purification by flash chromatography on silica gel (dichloromethane/methanol 95/5), to tert-butoxy-[4-(4,4-dimethyl-cyclohex-1-enyl)-2,5-dimethyl-thiophen-3-yl]-acetic acid (example 53) (21 mg, 0.06 mmol, 25%).
Workup
- customafter purification by flash chromatography on silica gel (dichloromethane/methanol 95/5)
Sources & evidence
- ORD record
- ord-1a678eea2cf143ef9f7a2ff50d67c840
- Source dataset
- uspto-grants-2016_01
- Patent number
- US09238026B2
Reaction notes
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