Methanol → tert-butyl (1S,2S,4R)-1-benzyl-2-hydroxy-4-({(2S)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoyl}amino)-5-[4-(2-pyridinyl)phenyl]pentylcarbamate

HRID 1174307Notes

Reaction equation

HRID 1174307 reaction equation
[CH2:1]([C@H:8]([NH:39][C:40](=[O:46])[O:41][C:42]([CH3:45])([CH3:44])[CH3:43])[C@@H:9]([OH:38])[CH2:10][CH:11]([NH:25][C:26](=[O:37])[C@@H:27]([NH:32][C:33]([O:35][CH3:36])=[O:34])[C:28]([CH3:31])([CH3:30])[CH3:29])[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][N:20]=2)=[CH:15][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CO>O>[CH2:1]([C@H:8]([NH:39][C:40](=[O:46])[O:41][C:42]([CH3:45])([CH3:44])[CH3:43])[C@@H:9]([OH:38])[CH2:10][C@H:11]([NH:25][C:26](=[O:37])[C@@H:27]([NH:32][C:33]([O:35][CH3:36])=[O:34])[C:28]([CH3:31])([CH3:30])[CH3:29])[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][N:20]=2)=[CH:15][CH:14]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 887MethanolHCID 86726221tert-butyl (1S,2S)-1-benzyl-2-hydroxy-4-({(2S)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoyl}amino)-5-[4-(2-pyridinyl)phenyl]pentylcarbamate

Product 1

HCID 42625870tert-butyl (1S,2S,4R)-1-benzyl-2-hydroxy-4-({(2S)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoyl}amino)-5-[4-(2-pyridinyl)phenyl]pentylcarbamateYield 35.6%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
45 °C

Procedure

A 12 L 3-necked round bottom flask was charged with 169.74 gm of the product of Example 111-12 and 3.5 L of methanol, warmed to 45° C., water (1.75 L) was slowly added, stirred at 45-48° C. for about 1 hour, and cooled to ambient temperature overnight. The slurry was filtered and washed with 2:1 methanol:water, suction dried for 1 hour and dried at 50° C. vacuum oven overnight to give 60.4 gm of the title compound (28:1 diastereomeric ratio as determined by HPLC (Column: XDB C8 15 cm, Eluent: CH3CN/10 mM Na2HPO4 with H3PO4 adjusted to pH 7, Gradient: 10% CH3CN to 90% CH3CN in 15 min, then hold for 10 min, column oven temperature: 35° C.).

Workup

  1. temperaturecooled to ambient temperature overnight
  2. filtrationThe slurry was filtered
  3. washwashed with 2:1 methanol
  4. dry with materialwater, suction dried for 1 hour
  5. customdried at 50° C. vacuum oven overnight

Sources & evidence

ORD record
ord-475ea35cac3e497db730f01748c05c2a
Source dataset
uspto-grants-2010_11
Patent number
US07834043B2

Reaction notes

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