1-(4-Pyridyl)piperazine → (1S,2R)-2-(4-chlorophenyl)-1'-(3-(4-(pyridin-4-yl)piperazine-1-carbonyl)benzyl)spiro[cyclopropane-1,3'-indolin]-2'-one

Participants

Reaction Steps

The title compound was prepared in analogy to Example 60 starting from 1-(pyridin-4-yl)piperazine, (3-bromomethyl)-benzoate (commercially available), (1R,2S) and (1S,2R)-3-((2-(4-chlorophenyl)-2′-oxospiro[cyclopropane-1,3′-indoline]-1′-yl)methyl)benzoic acid prepared as in Scheme 1. LC/MS m/e calcd. for C33H29ClN4O2: 548, observed (M+H)+: 549.1 1H NMR (400 MHz, MeOD-d4) δppm 2.20-2.29 (m, 2 H) 3.26-3.31 (m, 1 H) 3.58 (br. s., 4 H) 3.88 (br. s., 4 H) 5.08-5.25 (m, 2 H) 6.14 (d, J=7.58 Hz, 1 H) 6.77 (t, J=7.58 Hz, 1 H) 6.92 (d, J=7.83 Hz, 1 H) 7.12 (t, J=7.20 Hz, 3 H) 7.21-7.32 (m, 4 H) 7.41 (s, 1 H) 7.45 (d, J=7.33 Hz, 1 H) 7.50-7.61 (m, 2 H) 8.19 (d, J=7.58 Hz, 2 H).

Provenance & Evidence