Lithium hydroxide, monohydrate → HCID 46216689, compound

HRID 1424603Notes

Reaction equation

HRID 1424603 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:28]=1[C:9]1([CH2:14][CH2:13][N:12]([C:15](=[O:27])[NH:16][CH:17]3[CH:24]4[CH2:25][CH:20]5[CH2:21][CH:22]([CH2:26][CH:18]3[CH2:19]5)[CH2:23]4)[CH2:11][CH2:10]1)[CH2:8][CH:7]2[CH2:29][C:30]([O:32]CC)=[O:31].O[Li].O>C(O)C>[Br:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:28]=1[C:9]1([CH2:10][CH2:11][N:12]([C:15](=[O:27])[NH:16][CH:17]3[CH:18]4[CH2:26][CH:22]5[CH2:21][CH:20]([CH2:25][CH:24]3[CH2:23]5)[CH2:19]4)[CH2:13][CH2:14]1)[CH2:8][CH:7]2[CH2:29][C:30]([OH:32])=[O:31]

Participants

4

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 25064817HCID 25064817, compound

Product 1

HCID 46216689HCID 46216689, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of ethyl 2-(7-bromo-1′-((2-adamantyl)carbamoyl)-2,3-dihydrospiro[indene-1,4′-piperidine]-3-yl)acetate, isomer 2 (1.57 g, 3 mmol) in ethanol (15 mL) was added 2 M aq LiOH.H2O (15 mL, 30 mmol) at 0° C. and the mixture was stirred overnight at rt. The reaction mixture was washed with 1 aq N HCl until pH=5-6. The combined organic layers were dried over Na2SO4, filtered and concentrated to obtain 2-(7-bromo-1′-((2-adamantyl)carbamoyl)-2,3-dihydrospiro[indene-1,4′-piperidine]-3-yl)acetic acid isomer 2 (1.33 g, 90%). LC-MS Method 5 tR=1.44 min, m/z=503.1; 1H NMR (CD3OD): δ=1.19-1.48 (m, 2H), 1.48-1.62 (m, 4H), 1.65-1.95 (m, 12H), 2.20-2.66 (m, 3H), 2.70-3.12 (m, 4H), 3.50 (m, 1H), 3.70-4.08 (m, 3H), 4.89 (m, 1H), 6.90-7.15 (m, 2H), 7.40 (m, 1H).

Workup

  1. washThe reaction mixture was washed with 1 aq N HCl until pH=5-6
  2. dry with materialThe combined organic layers were dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-191c97a98762489aa3648b5e092522e4
Source dataset
uspto-grants-2015_01
Patent number
US08927715B2

Reaction notes

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