Cyanamide → US10273222, Example 64

HRID 2277507Notes

Reaction equation

HRID 2277507 reaction equation
[CH:1]1([CH2:4][N:5]([CH3:22])[CH2:6][CH2:7][N:8]2[CH:12]=[C:11]([C:13]3[CH:18]=[C:17]([C:19]([OH:21])=O)[CH:16]=[CH:15][N:14]=3)[N:10]=[CH:9]2)[CH2:3][CH2:2]1.[N:23]#[C:24][NH2:25].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C>[C:24]([NH:25][C:19]([C:17]1[CH:16]=[CH:15][N:14]=[C:13]([C:11]2[N:10]=[CH:9][N:8]([CH2:7][CH2:6][N:5]([CH2:4][CH:1]3[CH2:2][CH2:3]3)[CH3:22])[CH:12]=2)[CH:18]=1)=[O:21])#[N:23]

Participants

5

Reactant 3

HCID 9864CyanamideHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 90407463US10273222, Example 59

Product 1

HCID 90406906US10273222, Example 64Yield 61.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 2-(1-{2-[(cyclopropylmethyl)(methyl)amino]ethyl}-1H-imidazol-4-yl)pyridine-4-carboxylic acid (10 mg, 0.03 mmol, Example 59), cyanamide (4 mg, 0.1 mmol), HATU (38 mg, 0.1 mmol), TEA (29 μL, 0.2 mmol) in DMF (2 mL) was stirred at r.t. for 1 hr. The reaction mixture was purified by ISCO flash column chromatography (MeOH/DCM=0-50%) to give the title compound as off-white solid (6 mg, 60%). 1HNMR (400 MHz, DMSO-d6): δ 0.43 (2H, m), 0.79 (2H, m), 1.15 (1H, m), 2.30 (5H, m), 2.76 (2H, m), 4.11 (2H, t, J=4.2 Hz), 7.29 (1H, m), 7.73 (1H, d, J=11.4 Hz), 8.27 (1H, s), 8.29 (1H, s), 8.49 (1H, s). [M+H] Calc'd for C17H20N6O, 325. Found, 325.

Workup

  1. customThe reaction mixture was purified by ISCO flash column chromatography (MeOH/DCM=0-50%)

Sources & evidence

ORD record
ord-fe5d0e53aeab43498569d0221bf695f5
Source dataset
uspto-grants-2015_09
Patent number
US09133166B2

Reaction notes

Loading…