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

HRID 2205037Notes

Reaction equation

HRID 2205037 reaction equation
C([O:3][P:4]([CH2:9][CH2:10][O:11][CH2:12][CH2:13][O:14][CH2:15][CH2:16][O:17][CH2:18][CH2:19][NH:20][C:21](=[O:56])[C@@H:22]([NH2:55])[CH2:23][S:24][CH2:25][C@H:26]([NH:41][C:42](=[O:54])[CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH3:53])[CH2:27][O:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH3:40])(=[O:8])[O:5]CC)C.C[Si](Br)(C)C>C(Cl)Cl>[NH2:55][C@@H:22]([CH2:23][S:24][CH2:25][C@H:26]([NH:41][C:42](=[O:54])[CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH3:53])[CH2:27][O:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH3:40])[C:21](=[O:56])[NH:20][CH2:19][CH2:18][O:17][CH2:16][CH2:15][O:14][CH2:13][CH2:12][O:11][CH2:10][CH2:9][P:4](=[O:3])([OH:5])[OH:8]

Participants

4

Reactant 2

HCID 76113BromotrimethylsilaneHCID 86678310diethyl((14R,18R)-14-amino-18-dodecanamido-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontyl)phosphonate

Product 1

HCID 53476664((14R,18R)-14-amino-18-dodecanamido-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontyl)phosphonic acid

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
25 °C

Procedure

To a solution of diethyl((14R,18R)-14-amino-18-dodecanamido-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontyl)phosphonate (1 eq) in DCM (0.1 M) was added trimethylsilyl bromide (10 eq). The reaction mixture was stirred at 25° C. overnight and concentrated. The crude mixture was purified by reverse phase high performance liquid chromatography (HPLC) with C4 column eluting with a gradient of 40-100% MeCN/10 mM NH4OAc (95:5) in 10 mM NH4OAc (pH 9) to give ((14R,18R)-14-amino-18-dodecanamido-13-oxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontyl)phosphonic acid as a white solid after lyophilizing. 1H NMR (CDCl3): δ 8.84 (s, 2H), 6.54 (d, 2H), 4.20 (t, 2H), 4.07-4.11 (m, 2H), 3.49-3.70 (m, 12H), 3.31-3.36 (m, 4H), 3.00-3.02 (m, 4H), 2.72 (d, 4H), 2.15 (t, 2H), 1.43-1.55 (m, 6H), 1.16-1.22 (m, 32H), 0.80 (t, 6H). LRMS [M+H]=784.5.

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 40-100% MeCN/10 mM NH4OAc (95:5) in 10 mM NH4OAc (pH 9)

Sources & evidence

ORD record
ord-46066a972ba242baaf66666bb5e754d4
Source dataset
uspto-grants-2016_06
Patent number
US09365506B2

Reaction notes

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