Cyclopropylamine → (S)-N-cyclopropyl-6-(4-((6-oxo-6,6a,7,8,9,10-hexahydro-5H-dipyrido[1,2-a:3',2'-e]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinamide

HRID 69640Notes

Reaction equation

HRID 69640 reaction equation
[O:1]=[C:2]1[NH:7][C:6]2[CH:8]=[C:9]([CH2:12][N:13]3[CH2:18][CH2:17][N:16]([C:19]4[CH:27]=[CH:26][C:22]([C:23](O)=[O:24])=[CH:21][N:20]=4)[CH2:15][CH2:14]3)[CH:10]=[N:11][C:5]=2[N:4]2[CH2:28][CH2:29][CH2:30][CH2:31][C@@H:3]12.C([N:34]([CH:38]([CH3:40])[CH3:39])C(C)C)C.C1(N)CC1>CN(C=O)C>[CH:38]1([NH:34][C:23](=[O:24])[C:22]2[CH:26]=[CH:27][C:19]([N:16]3[CH2:15][CH2:14][N:13]([CH2:12][C:9]4[CH:10]=[N:11][C:5]5[N:4]6[CH2:28][CH2:29][CH2:30][CH2:31][C@H:3]6[C:2](=[O:1])[NH:7][C:6]=5[CH:8]=4)[CH2:18][CH2:17]3)=[N:20][CH:21]=2)[CH2:40][CH2:39]1

Participants

5

Reactant 3

HCID 69828CyclopropylamineHCID 81531DiisopropylethylamineHCID 58324392(S)-6-(4-((6-oxo-6,6a,7,8,9,10-hexahydro-5H-dipyrido[1,2-a:3',2'-e]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinic acid

Product 1

HCID 58324375(S)-N-cyclopropyl-6-(4-((6-oxo-6,6a,7,8,9,10-hexahydro-5H-dipyrido[1,2-a:3',2'-e]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinamideYield 50.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

(S)-6-(4-((6-oxo-6,6a,7,8,9,10-hexahydro-5H-dipyrido[1,2-a:3′,2′-e]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinic acid (75 mg, 0.178 mmol) was taken up in DMF (0.9 mL). To the mixture was added N-ethyl-N-isopropylpropan-2-amine (93 μl, 0.53 mmol), O-(7-Azabenzotriazole-1-yl)-N,N,N′N′-tetramethyluronium hexafluorophosphate (101 mg, 0.266 mmol), and cyclopropanamine (11.15 mg, 0.195 mmol). The reaction was stirred at room temperature overnight. The reaction was purified via HPLC (10-80 MeCN/H2O, TFA buffered). The fractions were collected and lyophilized to yield 41.2 mg (50%) of the product as a white solid. 1H NMR (DMSO-d6) δ (ppm): 10.81 (s, 1H), 9.85 (br. s., 1H), 8.61 (d, J=2.3 Hz, 1H), 8.30 (d, J=4.0 Hz, 1H), 8.01 (dd, J=9.0, 2.4 Hz, 1H), 7.82 (d, J=2.0 Hz, 1H), 7.04 (d, J=2.0 Hz, 1H), 6.95 (d, J=8.8 Hz, 1H), 4.42-4.64 (m, 3H), 4.24 (br. s., 2H), 3.92-4.01 (m, 1H), 3.42 (br. s., 2H), 2.94-3.26 (m, 4H), 2.75-2.86 (m, 1H), 2.58-2.73 (m, 1H), 2.03-2.12 (m, 1H), 1.87 (d, J=12.4 Hz, 1H), 1.66 (d, J=12.6 Hz, 1H), 1.31-1.61 (m, 3H), 0.62-0.73 (m, 2H), 0.46-0.57 (m, 2H). [M+H] calc'd for C25H31N7O2, 462; found, 462.

Workup

  1. customThe reaction was purified via HPLC (10-80 MeCN/H2O, TFA buffered)
  2. customThe fractions were collected

Sources & evidence

ORD record
ord-df34b3ceb03a4f11b77fdfde8765077c
Source dataset
uspto-grants-2014_09
Patent number
US08822470B2

Reaction notes

Loading…