Reaction equation
[C:1]([C:4]1[CH:29]=[CH:28][C:7]([O:8][CH2:9][CH2:10][CH2:11][S:12]([C:15]2[CH:20]=[CH:19][C:18]([C:21](=O)[CH2:22][CH2:23][C:24]([OH:26])=[O:25])=[CH:17][CH:16]=2)(=[O:14])=[O:13])=[C:6]([CH2:30][CH2:31][CH3:32])[C:5]=1[OH:33])(=[O:3])[CH3:2].ClCC(OC(CCl)CCl)CCl>C(Cl)(Cl)Cl>[C:1]([C:4]1[CH:29]=[CH:28][C:7]([O:8][CH2:9][CH2:10][CH2:11][S:12]([C:15]2[CH:20]=[CH:19][C:18]([C:21]3[O:25][C:24](=[O:26])[CH2:23][CH:22]=3)=[CH:17][CH:16]=2)(=[O:14])=[O:13])=[C:6]([CH2:30][CH2:31][CH3:32])[C:5]=1[OH:33])(=[O:3])[CH3:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
The compound of Example 29, (2.0 g, 4.197 mmoles) was suspended in chloroform (120 mls) to which was added 1,1-dichloromethylmethyl ether (10 ml). The reaction mixture was heated at 40° for 48 hours, and concentrated in vacuo. The residue was recrystallized to afford the title compound, m.p. 135°-136°.
Workup
- temperatureThe reaction mixture was heated at 40° for 48 hours
- concentrationconcentrated in vacuo
- customThe residue was recrystallized
Sources & evidence
- ORD record
- ord-fc294c4efcd94dc0991c6afc5cb3ddbc
- Source dataset
- uspto-grants-1992_08
- Patent number
- US05135940
Linked notes
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