碘代l-甲硫氨酸-S-甲基硫盐置于水,碳酸氢钠体系中,用92%的收率获得dl-高丝氨酸 参考文献:Jamieson,Andrew G.; Boutard,Nicolas; Beauregard,Kim,Journal Of The American Chemical Society,2009,Vol. 131,P. 7917-7927 标题:Jamieson,Andrew G.; Boutard,Nicolas; Beauregard,Kim,Journal Of The American Chemical Society,2009,Vol. 131,P. 7917-7927
专利号:US-12421534-B2 优先权日:2021-11-10 标 题 :Engineered enzymes and method for the synthesis of diverse tyrosine analogs 发明人:ALMHJELL PATRICK J; ARNOLD FRANCES H 权利人:CALIFORNIA INST OF TECHN 摘要:Provided herein is an engineered tryptophan synthase β-subunit (TrpB) that catalyzes the synthesis of tyrosine, tyrosine analogs, or salts thereof. Also provided herein are methods for preparing tyrosine, tyrosine analogs, or a salt thereof using the engineered TrpB described herein.
专利号:US-7589170-B1 优先权日:1998-09-25 标题 :Synthesis of cyclic peptides 发明人:SMYTHE MARK LESLIE; MEUTERMANS WIM DENIS FRANS; BOURNE GREGORY THOMAS; MCGEARY ROSS PETER 权利人:UNIV QUEENSLAND 摘要:This invention relates to methods for preparing cyclic peptides and peptidomimetic compounds in solution and bound to solid supports, and to cyclic peptide or peptidomimetic libraries for use in drug screening programs. In particular, the invention relates to a generic strategy for synthesis of cyclic peptides or peptidomimetics that enables the efficient synthesis under mild conditions of a wide variety of desired compounds. Two approaches were evaluated for their improvements in solution and solid phase synthesis of small cyclic peptides: positioning reversible N-amide substituents in the sequence; and applying native ligation chemistry in an intramolecular sense. Systematic investigation of the effects of preorganising peptides prior to cyclisation by using peptide cyclisation auxiliaries, and developing new linkers and peptide cyclisation auxiliaries to aid cyclic peptide synthesis gives surprising improvements in both yields and purity of products compared to the prior art methods. The combination of these technologies provides a powerful generic approach for the solution and solid phase synthesis of small cyclic peptides. The ring contraction and N-amide substitution technology of the invention provide improved methods for the synthesis of cyclic peptides and peptidomimetics. When used in conjunction with linker strategies, this combination provides solid-phase avenues to cyclic peptides and peptidomimetics.
专利号:US-7329515-B2 优先权日:2003-04-21 标题 :Solid support for the synthesis of 3′-amino oligonucleotides 发明人:LEUCK MICHAEL; WOLTER ANDREAS 权利人:SIGMA ALDRICH CO 摘要:The present invention discloses novel methods and solid supports for the synthesis of 3′-amino oligonucleotides. The novel supports are based on an unsubstituted or ring-substituted hydroxymethylbenzoyl linker element wherein the hydroxymethyl group is esterified to a solid phase bound carboxylic acid and the carbonyl group is linked to an amino alcohol as an amide. Oligonucleotides are conveniently synthesized on the novel supports with no modifications in the standard phosphoramidite synthesis scheme. The ester function of the support is cleaved under the alkaline deprotection conditions for oligonucleotides to provide a free hydroxymethyl group that aids in the release of the 3′-amino oligonucleotide products with a free amino group through neighbor group participation. The free amino group of the oligonucleotides is available for further conjugation reactions to haptens, reporter groups, surfaces or other small molecules or biomolecules. The methods provided are particularly mild, do not require any modifications in standard protocols for the synthesis and deprotection of oligonucleotides, provide the 3′-amino oligonucleotides free of side products and do not introduce chiral centers to the oligonucleotides.
专利号:WO-9312076-A1 优先权日:1991-12-13 标题:Reagents for automated synthesis of peptide analogs 发明人:WEBB THOMAS ROY 权利人:CORVAS INT INC 摘要:Reagents suitable for synthesis of peptide analogs using automated peptide synthesis and procedures for synthesis of peptide analogs are provided.
专利号:US-5283293-A 优先权日:1990-12-14 标 题:Reagents for automated synthesis of peptide analogs 发明人:WEBB THOMAS R 权利人:CORVAS INC 摘要:Reagents suitable for synthesis of peptide analogs using automated peptide synthesis and procedures for synthesis of peptide analogs are provided.
专利号:US-5367072-A 优先权日:1990-12-14 标 题 :Reagents for automated synthesis of peptide analogs 发明人:WEBB THOMAS R 权利人:CORVAS INT INC 摘要:Reagents suitable for synthesis of peptide analogs using automated peptide synthesis and procedures for synthesis of peptide analogs are provided.
参考文献:10.1093/pcp/pcn183 摘要:Sawada Y, Akiyama K, Sakata A, Kuwahara A, Otsuki H, Sakurai T, Saito K, Hirai MY. Widely targeted metabolomics based on large-scale MS/MS data for elucidating metabolite accumulation patterns in plants. Plant Cell Physiol. 2009 Jan;50(1):37–47.