Methanesulfonyl chloride → N2-methyl-N2-(methylsulfonyl)-N1-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}-L-leucinamide

HRID 1092539Notes

Reaction equation

HRID 1092539 reaction equation
[CH3:1][NH:2][C@H:3]([C:8]([NH:10][C@@H:11]1[C@H:18]2[C@H:14]([CH2:15][N:16]([CH2:19][C:20]3[CH:25]=[CH:24][CH:23]=[C:22]([C:26]([F:29])([F:28])[F:27])[CH:21]=3)[CH2:17]2)[CH2:13][CH2:12]1)=[O:9])[CH2:4][CH:5]([CH3:7])[CH3:6].C(N(CC)C(C)C)(C)C.[CH3:39][S:40](Cl)(=[O:42])=[O:41]>ClCCl>[CH3:1][N:2]([S:40]([CH3:39])(=[O:42])=[O:41])[C@H:3]([C:8]([NH:10][C@@H:11]1[C@H:18]2[C@H:14]([CH2:15][N:16]([CH2:19][C:20]3[CH:25]=[CH:24][CH:23]=[C:22]([C:26]([F:28])([F:27])[F:29])[CH:21]=3)[CH2:17]2)[CH2:13][CH2:12]1)=[O:9])[CH2:4][CH:5]([CH3:7])[CH3:6]

Participants

5

Reactant 3

HCID 31297Methanesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 66590643N2-methyl-N1-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}-L-leucinamide

Product 1

HCID 86641975N2-methyl-N2-(methylsulfonyl)-N1-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}-L-leucinamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To N2-methyl-N1-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}-L-leucinamide from Example 164 (122 mg, 0.296 mmol) in dichloromethane (0.5 mL) was added N,N-diisopropylethylamine (78 μL, 0.445 mmol) followed by methanesulfonyl chloride (25.4 μL, 0.326 mmol), and the reaction mixture was stirred at room temperature overnight. The reaction was reduced in volume and loaded onto a silica gel cartridge (Analogix®, Burlington, Wis., RS-12). The title compound was eluted with a gradient of 0% to 5% methanol (2 N ammonia)/dichloromethane over 20 minutes: 1H NMR (500 MHz, pyridine-d5) δ ppm 8.59 (d, J=6.7, 1H), 7.73 (s, 1H), 7.66 (d, J=7.6, 1H), 7.62 (d, J=7.8, 1H), 7.51 (t, J=7.7, 1H), 4.78 (dd, J=6.2, 9.5, 1H), 4.41-4.33 (m, 1H), 3.67 (d, J=13.3, 1H), 3.16 (s, 3H), 3.15 (s, 3H), 2.90 (qd, J=3.3, 7.9, 1H), 2.75 (dd, J=3.3, 9.6, 1H), 2.53-2.44 (m, 1H), 2.38-2.29 (m, 3H), 1.89-1.70 (m, 4H), 1.70-1.58 (m, 3H), 1.36-1.26 (m, 1H), 0.83 (d, J=6.6, 3H), 0.81 (d, J=6.5, 3H); MS (ESI+) m/z 490 (M+H)+.

Workup

  1. washThe title compound was eluted with a gradient of 0% to 5% methanol (2 N ammonia)/dichloromethane over 20 minutes

Sources & evidence

ORD record
ord-4d637ac63c414613b1ccc6a3d5c4fb6c
Source dataset
uspto-grants-2012_03
Patent number
US08129417B2

Reaction notes

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