CAS: 75898-26-9; D,L-β-Carboxyaspartic Acid

📜2-(Benzhydrylidene-Amino)-3-Benzyloxycarbonyl-Succinic Acid Dibenzyl Ester置于palladium Dichloride Ion Exchange,氢气体系中,化学反应生成 2-氨基乙烷-1,1,2-三羧酸
参考文献:2-Aza-π-Allylpalladium Complexes For The Synthesis Of β-Carboxyaspartic Acid (Asa) Derivatives
标题:2-Aza-π-Allylpalladium Complexes For The Synthesis Of β-Carboxyaspartic Acid (Asa) Derivatives
摘要:
DOI:10.1016/s0040-4039(00)97824-9

专利信息

专利号:US-6350595-B1
优先权日:1997-10-28
标题:Synthesis of polynucleotides having random sequences
发明人：NEUNER PHILIPPE
权利人:ISTITUTO DI RICERCHE DI MOLECO
摘要:Subject of this invention is a process for the chemical synthesis of polynucleotides having totally or partially random sequences, based on the utilization, as synthesis monomer units for the random sequence part, or presynthesized mononucleotides and dinucleotides. Said synthesis is carried out on separate supports, so that on each of those supports is alternated at least one reaction cycle wherein a mixture of said dinucleotides is bound, with at least one reaction cycle wherein a mononucleotide is bound, and that in a preferred embodiment at the end of the n cycles required for a codon synthesis, the supports are mixed and then redivided into one or more reaction containers. The resulting polynucleotides are such that, for the random sequence part, each trinucleotide unit is fit to match only a limited number of codons, predefined for each unity in number and sequence, and the genetic code degeneracy effects can thus be eliminated. FIG. 1 shows the chemical structure of the dinucleotides utilized as monomer units for the synthesis of codons forming the final sequence.

专利号:US-2008287649-A1
优先权日:2006-12-29
标 题 :Methods for the synthesis of cyclic peptides
发明人：CHEN LIN; HAN YEUN-KWEI; ROBERTS CHRISTOPHER R
权利人:CHEN LIN; HAN YEUN-KWEI; ROBERTS CHRISTOPHER R
摘要:Methods for the synthesis of cyclic peptides are provided, as well as novel dipeptide compounds. The methods include the solid phase synthesis of a dipeptide, which is the coupled to a second peptide in a solid phase reaction. The peptide is then cyclized following the coupling reaction. The methods and dipeptides are particularly useful for the synthesis of MC-4 receptor agonist peptides.

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-2024035023-A1
优先权日:2022-06-24
标题 :Computer implemented method for engineering fluorinase enzymes for synthesis of fluorophenyl compounds
发明人：R PRAVIN KUMAR; G GLADSTONE SIGAMANI; L ROOPA; B K NAVEEN; SHETTY ANUJ J; M LIKITH
权利人:KCAT ENZYMATIC PRIVATE LTD
摘要:The present invention discloses a computer-implemented method for engineering fluorinase enzymes towards the synthesis of fluorophenyl compounds. Limited or no mechanistic details of fluorinase enzymes have hindered progress in understanding their catalytic mechanisms for synthesizing synthetic organofluorine compounds. Through a comprehensive computational screening process, specific methionine-sulfonium phenyl substrates, including [(3S)-3-amino-3-carboxypropyl][2,5-difluoro-4-(4-methoxy-2,4-dioxobutyl)phenyl]methylsulfonium, were designed and optimized using quantum chemical optimization techniques. This methodology uncovers crucial information on F— ion attack conformation and the catalytic mechanism of the substrate, leading to the formation of Methyl 3-oxo-4-(2,4,5-trifluorophenyl)butanoate. Furthermore, a protein sequence and 3D modeling-based enzyme screening process was employed to identify the most suitable enzyme for this substrate. The identified enzyme was then engineered using the mechanistic insights gained from the studies, resulting in improved substrate scope, stability and catalytic efficiency. This computer-based approach offers an efficient and precise alternative to traditional trial-and-error methods, advancing the field towards the successful synthesis fluorophenyl compounds.

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-2005101763-A1
优先权日:2003-09-30
标 题 :Synthesis of photolabile 2-(2-nitrophenyl)propyloxycarbonyl protected amino acids
发明人：DELISI CHARLES P; LAURSEN RICHARD A; BHUSHAN KUMAR R
权利人:UNIV BOSTON
摘要:The 2-(2-nitrophenyl)propyloxycarbonyl (NPPOC) group has been introduced as a photolabile amino protecting group for amino acids to be used as building blocks in photolithographic solid-phase peptide synthesis. NPPOC-protected amino acids were found to be cleaved in the presence of UV light about twice as fast as the corresponding o-nitroveratryloxycarbonyl (NVOC)-protected amino acids. The protected amino acids are of particular use in the synthesis of peptide arrays.