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Changzhou Xiaqing Chemical Co.,Ltd
- 英文名：
changzhou xiaqing
Product Name: L-Aspartic acid 4-tert-butyl ester
CAS: 3057-74-7
MW: 189.21
EINECS: 221-292-8
Product Categories: Amino Acids Derivatives;Amino Acids;Aspartic acid [Asp, D];Amino Acids and Derivatives;Amino Acid Derivatives;Aspartic Acid;Peptide Synthesis
mp 220°C (dec.)
storage temp. 2-8°C
CAS DataBase Reference 3057-74-7(CAS DataBase Reference)
Safety Information
Safety Statements 22-24/25
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文献和实验Enzymes Acting on d-Amino Acid Containing Peptides
aminopeptidase and endopeptidase activities. The enzyme was active toward (d -Phe) n , Boc-(d -Phe) n , (d -Phe) n methyl ester, d -Phe-NH2 , Boc-(d -Phe) n methyl ester, and Boc-(d -Phe) n tert -butyl ester, but not toward (d -Ala) n (n = 2–4), (d
?isobutyryl?5??O ?(4,4??dimethoxytrityl)?2??O ?(propargyl)guanosine is converted to its 3??O ?levulinyl ester in a yield of 91%. The reaction of commercial N 2 ?isobutyryl?5??O ?(4,4??dimethoxytrityl)?2??O ?tert ?butyldimethylsilyl?3??O ?[(2?cyanoethyl)?N ,N
and lack sensitivity. GC methods based on the conversion into trimethylsilyl (4 ,5 ), neopentylidine (6 ), and N-trifluoroacetyl n -butyl ester (7 ) derivatives lack sensitivity, gives a tailing peak and requires anhydrous derivatization conditions
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