HCID 480312, compound → HCID 480397, compound

HRID 429981Notes

Reaction equation

HRID 429981 reaction equation
[CH2:1]([C@H:8]([NH:32][C:33](=[O:43])[O:34][C@@H:35]1[C@H:42]2[C@H:38]([O:39][CH2:40][CH2:41]2)[O:37][CH2:36]1)[C@H:9]([OH:31])[CH2:10][N:11]([CH2:23][C:24]([CH3:30])([CH3:29])[CH2:25][CH2:26][C:27]#[N:28])[S:12]([C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([NH:21][CH3:22])[CH:16]=1)(=[O:14])=[O:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>[Ni].N.CO>[NH2:28][CH2:27][CH2:26][CH2:25][C:24]([CH3:30])([CH3:29])[CH2:23][N:11]([S:12]([C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([NH:21][CH3:22])[CH:16]=1)(=[O:14])=[O:13])[CH2:10][C@@H:9]([OH:31])[C@@H:8]([NH:32][C:33](=[O:43])[O:34][C@@H:35]1[C@H:42]2[C@H:38]([O:39][CH2:40][CH2:41]2)[O:37][CH2:36]1)[CH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 1

HCID 480312HCID 480312, compound

Product 1

HCID 480397HCID 480397, compoundYield 77.3%

Reagents, catalysts & solvents 2

HCID 935NickelCatalystHCID 21705897Ammonia methanolSolvent

Procedure

A mixture of 0.29 g (0.46 mmol) of (3R,3aS,6aR)hexahydrofuro[2,3-b]furan-3-yl N-[(1S,2R)-1-benzyl-3-((4-cyano-2,2-dimethylbutyl)[3-(methylamino)phenyl]sulfonylamino)-2-hydroxypropyl]carbamate and approximately 50 mg of Raney nickel (washed with water and MeOH) in 60 mL of 2M NH3/MeOH was subjected to hydrogenation at 45 psi. After 1.5 hours the reaction vessel was purged with nitrogen, catalyst removed by filtration through celite and the filtrate concentrated in vacuo. The residue was subjected to flash chromatography (SiO2, 9:1 CH2Cl2/2M NH3 in MeOH) to afford 0.22 g (76%) of the desired amine as a white foam. NMR (CDCl3): 7.39-7.19 (m, 6H), 7.10 (d, 1H), 7.04-6.92 (m, 2H), 6.81 (dd, 1H), 5.63 (d, 1H), 5.05 (q, 1H), 4.16 (br s, 1H), 4.09-3.80 (m, 4H), 3.70 (m, 2H), 3.31 (m, 2H), 3.21-3.00 (m, 3H), 2.99-2.58 (m, 5H), 2.90 (s, 3H), 2.57-2.10 (br, 2H), 1.82-1.07 (m, 6H), 1.04 (s, 3H), 0.92 (s, 3H). MS(ESI): 619(M+H).

Workup

  1. customAfter 1.5 hours the reaction vessel was purged with nitrogen, catalyst
  2. customremoved by filtration through celite
  3. concentrationthe filtrate concentrated in vacuo

Sources & evidence

ORD record
ord-79d7e05bb6724b06aba1b7a473292fcf
Source dataset
uspto-grants-2001_11
Patent number
US06319946B1

Reaction notes

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