Bromotrimethylsilane → (14R,18R)-14-amino-18-(dodecyloxy)-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonic acid

HRID 2407920Notes

Reaction equation

HRID 2407920 reaction equation
[NH2:1][C@@H:2]([CH2:25][S:26][CH2:27][C@H:28]([O:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH3:55])[CH2:29][O:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH3:42])[C:3](=[O:24])[NH:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][O:13][CH2:14][CH2:15][P:16](=[O:23])([O:20]CC)[O:17]CC.C[Si](Br)(C)C>C(Cl)Cl>[NH2:1][C@@H:2]([CH2:25][S:26][CH2:27][C@H:28]([O:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH3:55])[CH2:29][O:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH3:42])[C:3](=[O:24])[NH:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][O:13][CH2:14][CH2:15][P:16](=[O:17])([OH:23])[OH:20]

Participants

4

Reactant 2

HCID 76113BromotrimethylsilaneHCID 86678305diethyl (14R,18R)-14-amino-18-(dodecyloxy)-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonate

Product 1

HCID 53476548(14R,18R)-14-amino-18-(dodecyloxy)-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonic acid

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of diethyl (14R,18R)-14-amino-18-(dodecyloxy)-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonate (1 eq) in DCM (0.1 M) was added trimethylsilyl bromide (20 eq). The reaction mixture was stirred at room temperature overnight and then concentrated. The crude mixture was purified by reverse phase high performance liquid chromatography (HPLC) with C4 column eluting with a gradient of 50-100% MeCN/10 mM NH4OAc (95:5) in 10 mM NH4OAc (pH 9) to give the title compound as a white solid. 1H NMR (CDCl3): δ 8.73 (br s, 1H), 4.17 (br s, 1H), 3.70-3.83 (m, 3H), 3.57-3.70 (m, 10H), 3.50-3.57 (m, 4H), 3.45-3.50 (m, 2H), 3.33-3.45 (m, 4H), 3.02-3.16 (m, 2H), 2.65-2.79 (m, 2H), 1.90 (dd, 2H), 1.47-1.61 (m, 4H), 1.16-1.36 (m, 36H), 0.88 (t, 6H). LRMS [M+H]=771.5.

Workup

  1. concentrationconcentrated
  2. customThe crude mixture was purified by reverse phase high performance liquid chromatography (HPLC) with C4 column
  3. washeluting with a gradient of 50-100% MeCN/10 mM NH4OAc (95:5) in 10 mM NH4OAc (pH 9)

Sources & evidence

ORD record
ord-5bf46abbf3e546a1a5a0034a556ace5d
Source dataset
uspto-grants-2014_08
Patent number
US08808703B2

Reaction notes

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