Methanol → HCID 23513777, compound

Participants

Reaction Steps

1-(4-Bromo-benzyl)-4-[4-(4-piperidin-1-yl-but-2-ynyloxy)-benzenesulfonyl]-piperdine-4-carboxylic acid was prepared starting from 1-(4-bromo-benzyl)-4-[4-(4-piperidin-1-yl-but-2-ynyloxy)-benzenesulfonyl]-piperidine-4-carboxylic acid ethyl ester (4.64 g, 7.5 mmol) dissolved in THF:methanol (50:150 ml) and 10 N NaOH (20 ml). The resulting reaction mixture was worked up as outlined in Example 1 (Step 7). Yield 3.35 g (76%); off white solid; mp 180° C.; MS: 295.9 (M+2H)2+ 590.9 (M+H)+.

Provenance & Evidence