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Thank you very much for your interest in our products. All prices listed on our website are ex-works, Germany, and may attract customs duties when imported.
You may/will be contacted by the shipping company for additional documentation that may be required by the US Customs for clearance.
We offer you the convenience of buying though a local partner, Peptide Solutions LLC who can import the shipment as well as prepay the customs duties and brokerage on your behalf and provide the convenience of a domestic sale.Continue to Iris Biotech GmbHSend request to US distributor
Pseudoproline dipeptides contain oxazolidine rings formed from serine or threonine. As pseudoprolines theirselves show rather low-yield couplings, they are utilized as preformed dipeptides which prevent the formation of aggregation-prone secondary structures. Depending on the substitution pattern, cysteine pseudoprolines can be stable towards standard cleavage conditions of tBu/Boc. This fact opens new possibilities for working out a successful strategy for regiospecific disulfide bridge formation in synthesizing multi-cyclic peptides. In addition, pseudoproline-containing peptides typically benefit of enhanced solubilities and coupling efficiencies.