1-Cinnamylpiperazine18903-01-030 % similar N-(4-Fluorobenzoyl)piperidine58547-67-430 % similar trans-1-Cinnamylpiperazine87179-40-630 % similar (S)-1,4-Benzodioxan-2-carboxypiperazine401941-54-630 % similar N-1,4-Benzodioxane-2-carbonyl piperazine70918-00-230 % similar 1-Benzoylpiperidine-4-carboxylic acid5274-99-730 % similar