Potassium Carbonate → HCID 86714027, compound

HRID 2206684Notes

Reaction equation

[Br:1][C:2]1[C:7]([Cl:8])=[C:6]([CH2:9][C:10]2[CH:15]=[CH:14][C:13]([O:16][CH2:17][CH3:18])=[CH:12][CH:11]=2)[CH:5]=[C:4]([C@H:19]2[C@H:24]([O:25][CH2:26][C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[C@@H:23]([O:33][CH2:34][C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)[C@H:22]([O:41][CH2:42][C:43]3[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=3)[C@@H:21]([CH2:49][O:50][CH2:51][C:52]3[CH:57]=[CH:56][CH:55]=[CH:54][CH:53]=3)[O:20]2)[C:3]=1[OH:58].C([O-])([O-])=O.[K+].[K+].Br[CH2:66][CH2:67][CH2:68][OH:69]>CC(C)=O>[Br:1][C:2]1[C:7]([Cl:8])=[C:6]([CH2:9][C:10]2[CH:15]=[CH:14][C:13]([O:16][CH2:17][CH3:18])=[CH:12][CH:11]=2)[CH:5]=[C:4]([C@H:19]2[C@H:24]([O:25][CH2:26][C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[C@@H:23]([O:33][CH2:34][C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)[C@H:22]([O:41][CH2:42][C:43]3[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=3)[C@@H:21]([CH2:49][O:50][CH2:51][C:52]3[CH:53]=[CH:54][CH:55]=[CH:56][CH:57]=3)[O:20]2)[C:3]=1[O:58][CH2:66][CH2:67][CH2:68][OH:69]

Participants

Conditions

Temperature: 55 °C

Procedure

To a suspension of crude compound 28 (1.33 g, 1.54 mmol) and K2CO3 (0.322 g, 2.31 mmol) in acetone (20 mL) was added 3-bromopropanol (0.30 mL, 2.31 mmol) at r.t. The mixture was stirred at 55° C. for 15 hours. The reaction mixture was cooled to r.t and filtered off to remove inorganic salts. The filtrate was concentrated in vacuo. The residue was purified using normal phase column chromatography to provide the title product 29 (1.47 g, 100%).

Workup

temperatureThe reaction mixture was cooled
filtrationfiltered off
customto remove inorganic salts
concentrationThe filtrate was concentrated in vacuo
customThe residue was purified

Sources & evidence

ORD record: ord-e0aafa629d8443a18ba26a748a769132
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09371303B2

Reaction notes

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