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N-(Benzyloxycarbonyl)-L-leucyl-L-serin-benzylester, also known as Z-L-leucyl-L-serine benzyl ester or Z-L-Leu-L-Ser-OBzl, is a tripeptide derivative that consists of a leucine (Leu) and serine (Ser) amino acid sequence with a benzyloxycarbonyl (Z) protecting group and a benzyl ester (OBzl) at the C-terminus. N-(Benzyloxycarbonyl)-L-leucyl-L-serin-benzylester is widely used in organic synthesis, particularly in the field of peptide chemistry, as a building block for the synthesis of larger peptides and proteins. The Z group serves as a temporary protecting group for the N-terminal amino group, preventing unwanted side reactions during peptide synthesis, while the benzyl ester group is used to protect the carboxylic acid group of the serine residue. The ester can be easily hydrolyzed under mild acidic conditions to yield the corresponding carboxylic acid, allowing for further peptide bond formation. N-(Benzyloxycarbonyl)-L-leucyl-L-serin-benzylester is crucial for the development of new pharmaceuticals, as it enables the synthesis of complex peptide-based drugs with specific biological activities.

1738-90-5

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1738-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1738-90-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,3 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1738-90:
(6*1)+(5*7)+(4*3)+(3*8)+(2*9)+(1*0)=95
95 % 10 = 5
So 1738-90-5 is a valid CAS Registry Number.

1738-90-5Relevant academic research and scientific papers

Synthesis of a family of cyclic peptide-based anion receptors

Butler, Stephen J.,Jolliffe, Katrina A.

experimental part, p. 3471 - 3483 (2011/06/25)

We report here the design and synthesis of a family of novel backbone modified cyclic peptides, bearing dipicolylamine side chains for metal complexation and subsequent anion binding studies. Two approaches to the cyclic peptides were investigated. Initia

Building Units of Oligosaccharides, LXVI. - Synthesis of O-Glycopeptide Blocks of Glycophorine

Paulsen, Hans,Schultz, Michael,Klamann, Joerg-Dieter,Waller, Birgit,Paal, Michael

, p. 2028 - 2048 (2007/10/02)

A block synthesis to O-glycopeptides can be realized by reaction of the disaccharide halide 10 with either L-serine- or L-threonine-containing peptide derivatives.Thus, the reaction of 10 with 8 yields stereoselectively the L-Ser-L-Ser derivative 15 in wh

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