1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 2-chloro-N-((R)-3-{4-[(4-methoxy-phenyl)-(4-methyl-pyridin-3-ylmethyl)-amino]-piperidin-1-yl}-butyl)-4-methyl-nicotinamide

HRID 1782576Notes

Reaction equation

HRID 1782576 reaction equation
[NH2:1][CH2:2][CH2:3][C@H:4]([N:6]1[CH2:11][CH2:10][CH:9]([N:12]([C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)[CH2:13][C:14]2[CH:15]=[N:16][CH:17]=[CH:18][C:19]=2[CH3:20])[CH2:8][CH2:7]1)[CH3:5].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.[Cl:50][C:51]1[N:59]=[CH:58][CH:57]=[C:56]([CH3:60])[C:52]=1[C:53](O)=[O:54].CCN(C(C)C)C(C)C>CN(C=O)C>[Cl:50][C:51]1[N:59]=[CH:58][CH:57]=[C:56]([CH3:60])[C:52]=1[C:53]([NH:1][CH2:2][CH2:3][C@H:4]([N:6]1[CH2:7][CH2:8][CH:9]([N:12]([C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)[CH2:13][C:14]2[CH:15]=[N:16][CH:17]=[CH:18][C:19]=2[CH3:20])[CH2:10][CH2:11]1)[CH3:5])=[O:54]

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 154837662-Chloro-4-methylpyridine-3-carboxylic acidHCID 57562991HCID 57562991, compound

Product 1

HCID 573923032-chloro-N-((R)-3-{4-[(4-methoxy-phenyl)-(4-methyl-pyridin-3-ylmethyl)-amino]-piperidin-1-yl}-butyl)-4-methyl-nicotinamideYield 57.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
25 °C

Procedure

(R)-[1-(3-Amino-1-methyl-propyl)-piperidin-4-yl]-(4-methoxy-phenyl)-(4-methyl-pyridin-3-ylmethyl)-amine (0.077 g, 0.20 mmol), EDCI (0.043 g, 0.22 mmol) and HOBT (0.030 g, 0.22 mmol) were combined in DMF (5 mL) to give a pale yellow solution. To this solution was added 2-chloro-4-methyl-nicotinic acid (0.038 g, 0.22 mmol) followed by DIPEA (42 μL, 0.24 mmol) and the resulting mixture was stirred at 25° C. for 16 h. Standard workup according to General Procedure C gave the crude product as a tan oil. Purification by column chromatography on silica gel (Et2O:MeOH:NH4OH, 90:8:2, v/v/v) afforded 2-chloro-N-((R)-3-{4-[(4-methoxy-phenyl)-(4-methyl-pyridin-3-ylmethyl)-amino]-piperidin-1-yl}-butyl)-4-methyl-nicotinamide (0.062 g, 57%) as a white foam. 1H NMR (CDCl3) δ 0.98 (d, 3H, J=6.0 Hz), 1.06 (m, 1H), 1.22 (m, 1H), 1.57 (m, 2H), 1.81 (m, 3H), 2.11 (br t, 1H), 2.36 (s, 6H), 2.53 (br t, 1H), 2.75-2.88 (m, 3H), 3.20-3.33 (m, 2H), 3.71 (s, 3H), 3.82 (m, 1H), 3.90 (m, 2H), 6.63 (d, 2H, J=9.0 Hz), 6.71 (d, 2H, J=9.0 Hz), 6.96 (d, 1H, J=6.0 Hz), 7.03 (d, 1H, J=6.0 Hz), 7.98 (d, 1H, J=6.0 Hz), 8.25 (s, 1H), 8.30 (d, 1H, J=3.0 Hz), 8.42 (br s, 1H). 13C NMR (CDCl3) δ 13.3, 18.9, 19.1, 29.6, 30.4, 30.9, 39.9, 43.8, 47.0, 51.9, 55.5, 59.2, 60.0, 114.4, 119.9, 124.2, 125.1, 148.0, 149.0, 149.3. ES-MS m/z 536 (M+H), 558 (M+Na). Anal. Calcd. for C30H38N5O2Cl.0.2 CH2Cl2: C, 65.58; H, 7.00; N, 12.66. Found: C, 65.64; H, 7.15; N, 12.79.

Workup

  1. customto give a pale yellow solution
  2. customgave the crude product as a tan oil
  3. customPurification by column chromatography on silica gel (Et2O:MeOH:NH4OH, 90:8:2, v/v/v)

Sources & evidence

ORD record
ord-9a764643ff0e4c8383b34a0d4d0450ea
Source dataset
uspto-grants-2009_03
Patent number
US07498346B2

Reaction notes

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