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peptide synthesis

Shinsei Chemical has extensive experience in peptide synthesis. We can handle non-natural peptides with complex structures that are difficult to handle on synthesis equipment.

We are most experienced in liquid-phase methods, fragment condensation and the synthesis of cyclic structures.



Although we do not have synthesis equipment, we have experience in synthesis of more than 60 residues by the manual solid-phase method, and in combination with the liquid-phase method, we can synthesise sequences that are difficult to handle by synthesis equipment alone.




We also have experience in the synthesis of glycopeptides.



The following list is presented, although very few structures are available to the public due to confidentiality agreements.There are many examples of syntheses with structures not disclosed in our business.
We also have extensive experience in side-chain modification of peptides isolated from natural products.

 
SCHEM No. Structure Compound Name Price (JPY) Purity Stock(mg)
07609

Glutathione tridecasulfide

170,000/0.1mg<80%0.7
07608

Glutathione dodecasulfide

170,000/0.1mg<80%0.6
07607

Glutathione undecasulfide

170,000/0.1mg<80%0.7
07606

Glutathione decasulfide

170,000/0.3mg<80%0.9
07603

Glutathione nonasulfide

170,000/0.5mg>80%1.5
07524

Glutathione octasulfide

170,000/0.8mg>90%1.7
06866

Glutathione heptasulfide

170,000/1mg>90%3.2
06865

Glutathione hexasulfide

170,000/2mg>90%8.6
06862

Glutathione pentasulfide

170,000/5mg>90%19.0
06861

Glutathione tetrasulfide

170,000/10mg>90%0
03689

tert-Butyl (2S)-2-[(1R,2R)-3-[[(1S)-1-benzyl-2-oxo-2-[2-(2-prop-2-ynoxyethoxy)ethylamino]ethyl]amino]-1-methoxy-2-methyl-3-oxo-propyl]pyrrolidine-1-carboxylate

133,000/0.1mg>95%206.2
06860

Glutathione trisulfide

170,000/30mg>90%89.5
03855

Peptide intermediate

133,000/0.1mg>95%2.0
03807

Fmoc-peptide-CC

133,000/0.1mg>95%0.1
06864

Glutathione disulfide

66,100/100mg>90%0
05768

Cyclosporin AM-1

76,000/0.1mg>95%49.5
03691

Heptanoic acid, 4-[[(2S)-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-3-methyl-1-oxobutyl]methylamino]-3-methoxy-5-methyl-, 1,1-dimethylethyl ester, (3R,4S,5S)-

64,000/5mg>95%61.0
03615

Acetylcyclosporine

inquire>95%0.1
02560

O-Val-Vla-O-D-Leu-OBn

64,600/0.5mg>95%6.9
02522

Cereuride

105,500/0.1mg>95%3.0
02520

Cereuride precursor

68,800/0.1mg>95%10.0
02519

Boc-(D-Ala-O-L-Val-L-Val-O-D-Leu)3-OBn

68,800/0.1mg>95%0
02358

rac-(2S)-4-tert-butoxy-2-[[4-tert-butoxy-4-oxo-2-[6-[[rac-(2S)-5-acetylsulfanyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)pentanoyl]amino]hexanoylamino]butanoyl]amino]-4-oxo-butanoic acid

68,800/0.1mg>95%6.0
01984

Boc-DALa-O-Val-OBn

65,300/10mg>95%116.0
01969

rac-(2S)-2-[[3-carboxy-2-[[rac-(2S)-1-[rac-(2S)-6-amino-2-[[rac-(2S)-1-(3-acetylsulfanylpropanoyl)pyrrolidine-2-carbonyl]amino]hexanoyl]pyrrolidine-2-carbonyl]amino]propanoyl]amino]butanedioic acid

68,800/0.1mg>95%3.0


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