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              tert-Butyl 5-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate CAS:201150-73-4tert-Butyl 5-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate is a heterocyclic compound containing a dihydroisoquinoline ring system substituted with an exocyclic amine and tert-butoxycarbonyl protecting group. This enables diverse substitutions and additions at both the amine and carbamate functionalities. 
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              tert-butyl 4-ethyl-2,2-dimethyl-3-oxopiperazine-1-carboxylate CAS:1936596-50-7tert-butyl 4-ethyl-2,2-dimethyl-3-oxopiperazine-1-carboxylate is a heterocyclic compound containing a piperazine ring substituted with ketone, methyl groups, an ethyl group and tert-butoxycarbonyl protecting group. This structure engages in nucleophilic additions and substitutions through its ketone and carbamate moieties. 
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              tert-Butyl 4-(2-((2-aminoethyl)amino)ethyl)piperazine-1-carboxylate trihydrochloride CAS:1877331-31-1tert-Butyl 4-(2-((2-aminoethyl)amino)ethyl)piperazine-1-carboxylate trihydrochloride is a piperazine derivative containing a carbamate protected amine substituent and two aminoethyl chains. This structural motif offers opportunities for diversification through the piperazine nitrogen and amine functionalities. 
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            ![tert-Butyl 2-amino-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxylate CAS:365996-05-0](https://cdn.globalso.com/xindaobiotech/@KXYTC_DK6YAW1Z7LU96.png)  tert-Butyl 2-amino-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxylate CAS:365996-05-0tert-Butyl 2-amino-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxylate is a heterocyclic carbamate containing a thiazolo ring fused to a piperidine ring system with an exocyclic amino functionality. This offers opportunities for functionalization at the amine and heterocyclic sites. 
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              methyl 1-(3-bromophenyl)-3,3-dimethoxycyclobutane-1-carboxylate CAS:2322886-10-0Methyl 1-(3-bromophenyl)-3,3-dimethoxycyclobutane-1-carboxylate is a cyclobutane derivative with an ester, aryl bromide and dimethoxy substitutions. This structural configuration offers multiple avenues for nucleophilic substitution, addition and ester hydrolysis reactions. 
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              tert-butyl trans-3-hydroxy-4-methoxypyrrolidine-1-carboxylate CAS:148214-86-2tert-butyl trans-3-hydroxy-4-methoxypyrrolidine-1-carboxylate is a pyrrolidine derivative containing a carbamate protected alcohol and a methoxy substituent. This structural motif provides opportunities for functionalization through the alcohol and pyrrolidine nitrogen. 
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              ethyl 1,4-dibenzyl-1,4-diazepane-2-carboxylate CAS:847556-35-8Ethyl 1,4-dibenzyl-1,4-diazepane-2-carboxylate is a diazepane derivative with ethyl ester and benzyl protecting groups. This offers multiple functional handles for diverse substitution, addition and ester hydrolysis reactions through its diazepane nitrogen and ester group. 
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              Ethyl 3-(pyridin-3-yl)acrylate CAS:28447-17-8Ethyl 3-(pyridin-3-yl)acrylate is an acrylate ester containing an α,β-unsaturated system linked to a pyridine ring. This structural motif provides opportunities for 1,4- and 1,2- additions across the acrylate as well as functionalization at the pyridine nitrogen. 
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            ![6-(Trifluoromethoxy)-1H-benzo[d]imidazole CAS:911825-64-4](https://cdn.globalso.com/xindaobiotech/OQ@BHHSQYIMHECZWKG_BXM22.png)  6-(Trifluoromethoxy)-1H-benzo[d]imidazole CAS:911825-64-46-(Trifluoromethoxy)-1H-benzo[d]imidazole is a substituted benzimidazole containing a trifluoromethoxy group on the benzene ring fused to the heterocyclic imidazole. This provides opportunities for functionalization through the labile trifluoromethoxy moiety and nucleophilic aromatic substitutions on the imidazole. 
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            ![3-Benzylimidazo[1,5-a]pyridine-1-carboxylic acid CAS:1018517-02-6](https://cdn.globalso.com/xindaobiotech/1ZNB2ZF342ZWRNG248.png)  3-Benzylimidazo[1,5-a]pyridine-1-carboxylic acid CAS:1018517-02-63-Benzylimidazo[1,5-a]pyridine-1-carboxylic acid is a heteroaromatic carboxylic acid containing an imidazopyridine scaffold substituted at the C3 position with a benzyl group. This unique structure holds opportunities for functionalization at the heterocyclic nitrogen as well as the carboxylic acid site. 
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              5-Hydroxypiperidine-2-carboxylicacid CAS:13096-31-65-Hydroxypiperidine-2-carboxylicacid is a hydroxylated piperidine carboxylic acid. This unique structure provides opportunities for functionalization through the acid functionality and piperidine nitrogen as well as the alcohol moiety. 
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            ![4-(5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-5-yl)benzoic acid CAS:93178-73-5](https://cdn.globalso.com/xindaobiotech/8NS8DBIRAVXN0VCLT186.png)  4-(5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-5-yl)benzoic acid CAS:93178-73-54-(5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-5-yl)benzoic acid is a heterocyclic acid containing a tetrahydroimidazopyridine ring fused to a benzoic acid. This structure possesses diverse substitution and addition reactive sites through the heterocyclic nitrogen and acid functionality. 
 
				