2-Amino-4-[(methoxymethoxy)methyl]-3-thiophenesulfonamide → 1-[(Cyclopropylmethyl)amino]-4-hydroxy-3-{7-[(methoxymethoxy)methyl]-1,1-dioxido-4h-thieno[2,3-e][1,2,4]thiadiazin-3-yl}quinolin-2(1h)-one

Participants

Reaction Steps

A solution of the product of Example 353B (500.3, 1.5 mmol) and the product of Example 309G (377.62 mg, 1.5 mmol) in dioxane (15 mL) was stirred at reflux for 1.5 hours and concentrated under reduced pressure. The residue was purified by chromatography on silica gel eluting with 0% to 10% ethyl acetate/dichloromethane to give the title compound (384.7 mg, 52%). 1H NMR (300 MHz, DMSO-d6) δ 0.15 (m, 2 H) 0.42 (m, 2 H) 1.01 (m, 1 H) 2.84 (d, J=6.99 Hz, 2 H) 4.64 (s, 2 H) 4.71 (s, 2 H) 6.36 (br s, 1 H) 7.42 (m, 2 H) 7.86 (m, 1 H) 8.07 (d, J=8.46 Hz, 1 H) 8.16 (m, 1 H).

Provenance & Evidence