Triethylamine → (R)-(-)-3,6-Dihydro-4-[4-[5-[[(methylsulfonyl)oxy]methyl]-2-oxo-3-oxazolidinyl]phenyl]-1(2 H)-pyridinecarboxylic acid phenylmethyl ester

HRID 1004805Notes

Reaction equation

[C:1]1([CH2:7][O:8][C:9]([N:11]2[CH2:16][CH:15]=[C:14]([C:17]3[CH:22]=[CH:21][C:20]([N:23]4[CH2:27][C@H:26]([CH2:28][OH:29])[O:25][C:24]4=[O:30])=[CH:19][CH:18]=3)[CH2:13][CH2:12]2)=[O:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N(CC)CC)C.[CH3:38][S:39](Cl)(=[O:41])=[O:40]>C(Cl)Cl>[C:1]1([CH2:7][O:8][C:9]([N:11]2[CH2:12][CH:13]=[C:14]([C:17]3[CH:22]=[CH:21][C:20]([N:23]4[CH2:27][C@H:26]([CH2:28][O:29][S:39]([CH3:38])(=[O:41])=[O:40])[O:25][C:24]4=[O:30])=[CH:19][CH:18]=3)[CH2:15][CH2:16]2)=[O:10])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

Conditions

Temperature: 0 °C

Procedure

A solution of (R)-(-)-3,6-dihydro-4-[4-[5-(hydroxymethyl)-2-oxo-3-oxazolidinyl]phenyl]-1(2H)-pyridinecarboxylic acid phenylmethyl ester (EXAMPLE 17, Step 3, 970 mg) and triethylamine (0.50 mL) in dry methylene chloride (9.5 mL) at 0° C. under N2 is treated with methanesulfonyl chloride (0.20 mL) dropwise. The resulting mixture is stirred at 0° C. for one hour, diluted with methylene chloride (40 mL), washed with water (10 mL), saturated aqueous sodium bicarbonate (10 mL) and saline (10 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure to give the title compound, mp 166-168° C.

Workup

washwashed with water (10 mL), saturated aqueous sodium bicarbonate (10 mL) and saline (10 mL)
dry with materialdried over anhydrous sodium sulfate
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-d07e7c1a847b482b9705ad67d2431944
Source dataset: uspto-grants-2000_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06051716

Reaction notes

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