1-Methylpiperazine → 2-[2-Hydroxy-4-(4-methyl-piperazin-1-yl)-phenylamino]-8-indan-5-yl-5-oxo-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid amide

Participants

Reaction Steps

Using the procedure outlined in Example 23 (c), the title compound was prepared from 2-amino-5-(4-methyl-piperazin-1-yl)-phenol (5 mg, prepared using the procedure outlined in Example 1 (F) from 1-fluoro-2-hydroxy-4-nitrobenzene and 1-methyl-piperazine) and 8-indan-5-yl-2-methanesulfonyl-5-oxo-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid amide (from Example 23 (b), 7 mg). Purification by preparative HPLC (32 mL/min, 5-100% H2O/MeCN (0.01% TFA, v/v) gradient over 10 min) followed by a basic aqueous work-up gave the title compound as a yellow solid (3.7 mg, 40%). 1H NMR (400 MHz, CD3OD) δ (ppm): 9.25 (br, 1H), 8.73 (s, 1H), 7.44 (d, J=8.4 Hz, 2H), 7.36 (s, 1H), 7.25 (d, J=7.1 Hz, 1H), 6.45 (s, 1H), 6.02 (br, 1H), 3.20 (br, 2H), 3.03 (m, 6H), 2.65 (s, 3H), 2.22 (m, 2H). Mass Spectrum (LCMS, ESI pos.) Calcd. For C28H29N7O3: 512.23 (M+H), Found: 512.1.

Provenance & Evidence