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tert-butyl 4-fluoro-4-(hydroxymethyl)piperidine-1-carboxylate
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tert-butyl 4-amino-4-cyanopiperidine-1-carboxylate
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tert-Butyl 4,7-diazaspiro[2.5]octane-4-carboxylate
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tert-butyl 4-(hydroxymethyl)piperidine-1-carboxylate
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tert-butyl 4-(aminomethyl)-4-hydroxypiperidine-1-carboxylate
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tert-butyl 4-(aminomethyl)-4-fluoropiperidine-1-carboxylate
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tert-butyl 3,3-difluoro-4-oxopiperidine-1-carboxylate
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tert-butyl 3-(trifluoromethyl)piperazine-1-carboxylate
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tert-butyl 2-oxo-1-oxa-3,8-diazaspiro[4.5]decane-8-carboxylate
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tert-butyl 2,7-diazaspiro[3.5]nonane-7-carboxylate