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Amino acids
α-Amino acids and derivatives
ß-Amino acids and derivatives
γ -Amino acids and derivatives
 
Labeled Amino acids
Building blocks
Custom Synthesis
Intermediates
Building Blocks
Based on WELL E&C chiral catalyst technology, various chiral building blocks for active pharmaceutical ingredients could be available.

No. Structure Name CAS No. CODE No.
37
(4S,5R)-5-(methoxycarbonyl)-1,3-dimethyl-2-oxoimidazolidine-4-carboxylic acid  
36
(4R,5S)-5-(methoxycarbonyl)-1,3-dimethyl-2-oxoimidazolidine-4-carboxylic acid  
35
(S)-5-methoxy-3-(2-methoxypyrimidin-5-yl)-5-oxopentanoic acid  
758686-06-5
34
(R)-5-methoxy-3-(2-methoxypyrimidin-5-yl)-5-oxopentanoic acid  
848946-13-4
33
(S)-3-(4-fluorophenyl)-5-methoxy-5-oxopentanoic acid  
216690-16-3
32
(R)-3-(4-fluorophenyl)-5-methoxy-5-oxopentanoic acid  
1220248-48-5
31
(S)-5-methoxy-5-oxo-3-phenylpentanoic acid  
101713-10-4
30
(R)-5-methoxy-5-oxo-3-phenylpentanoic acid  
91478-85-2
29
(S)-3-(tert-butyldiphenylsilyloxy)-5-methoxy-5-oxopentanoic acid  
87118-66-9
28
(R)-3-(tert-butyldiphenylsilyloxy)-5-methoxy-5-oxopentanoic acid  
87118-55-6
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