2,6-Dichlorobenzaldehyde → N5-[1-(2,6-Dichloro-benzyl)-pyrrolidin-2-ylmethyl]-2-furan-2-yl-[1,2,4]triazolo[1,5-a][1,3,5]triazine-5,7-diamine

Participants

Reaction Steps

2-Furan-2-yl-N5-pyrrolidin-2-ylmethyl-[1,2,4]-triazolo[1,5-a][1,3,5]triazine-5,7-diamine (0.15 mmol) was dissolved in 4 mL of CH2Cl2 along with 2 eq. of 2,6-dichlorobenzaldehyde and 25 mL of glacial acetic acid. The reaction mixture was stirred at room temperature for 30 minutes and sodium triacetoxyborohydride (4 eq.) was added in a single portion. The resulting reaction mixture was then stirred at room temperature for 18 hours. It was then concentrated under a stream of N2 and purified by preparative HPLC using a mixture of aqueous CH3CN that has been buffered with 0.1% TFA. 1H NMR (DMSO-d6) δ 7.60 (d, J=1.0 Hz, 1H), 7.28 (br s, 2H), 7.22 (d, J=3.6 Hz, 1H), 6.95-7.0 (m, 3H), 6.68 (dd, J=3.6 Hz, 1.0 Hz, 1H), 2.2-3.2 (m, 8H). MS: m/z: 460[M+H]+.

Provenance & Evidence