CAS: 25609-85-2; 2-Amino-3-Methylbutanoic Acid

上下游产品

4-isopropylidene-2-thioxo-thiazolidin-5-one 2-chloro-3-methylbutanoic acid 2-bromoisovaleric acid 2-isopropyl-malonamic acidN-butyrylvaline Glycylvaline N,N-dimethylvaline cyclo-(Leu-Val)

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: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-10865390-B2
优先权日:2018-02-12
标 题 :Alcohol dehydrogenase mutant and application thereof in synthesis of diaryl chiral alcohols
发明人：NI YE; ZHOU JIEYU; XU GUOCHAO; WANG YUE
权利人:UNIV JIANGNAN
摘要:The present disclosure discloses an alcohol dehydrogenase mutant and application thereof in synthesis of diaryl chiral alcohols, and belongs to the technical field of bioengineering. The alcohol dehydrogenase mutant of the present disclosure has excellent catalytic activity and stereoselectivity, and may efficiently catalyze the preparation of a series of chiral diaryl alcohols in R- and S-configurations. By coupling alcohol dehydrogenase of the present disclosure to glucose dehydrogenase or formate dehydrogenase, the synthesis of chiral diaryl alcohol intermediates of various antihistamines may be achieved. Compared with the prior art, a method for preparing diaryl chiral alcohols through asymmetric catalytic reduction using the alcohol dehydrogenase of the present disclosure has the advantages of simple and convenient operation, high substrate concentration, complete reaction and high product purity, and has great industrial application prospects.

专利号:US-2024287126-A1
优先权日:2021-05-14
标 题:Novel synthesis of cholesterol
发明人：SCHINZER DIETER; SPIESS OLIVER; MUNT MAXIM; INDOLESE ADRIANO; ROUX LIONEL
权利人:CORDENPHARMA INT GMBH; UNIV OTTO VON GUERICKE MAGDEBURG; CORDENPHARMA INT
摘要:The invention relates to a synthesis of cholesterol; a ring opening step of the compound of formula (I) and subsequent activation and reduction step yielding cholesterol. The inventions relates also to intermediates achieved during said synthesis.

专利号:US-2025019732-A1
优先权日:2023-07-07
标 题:Method for chemical-biological cascade synthesis of l-phosphinothricin and mutants therefor
发明人：XUE YAPING; CHENG FENG; ZOU SHUPING; XU JIANMIAO; ZHENG YUGUO
权利人:UNIV ZHEJIANG TECHNOLOGY
摘要:A method for chemical-biological cascade synthesis of L-phosphinothricin is carried out as follows: 3-(methylethoxyphosphinyl) ethyl propionate is synthesized by addition reaction from diethoxymethylphosphine and acrylic acid, then a condensation reaction is carried out with 3-(methylethoxyphosphinyl) ethyl propionate and sodium ethoxide as reactants, then the product is subjected to a hydrolysis reaction with diethyl oxalate to synthesize 4-(hydroxymethylphosphinyl)-2-oxobutyric acid, and finally, L-phosphinothricin is catalytically synthesized by taking 4-(hydroxymethylphosphinyl)-2-oxobutyric acid as a raw material, and using highly active and stable wet cells co-expressing phsophinothricin dehydrogenase and alcohol dehydrogenase or co-expressing a phsophinothricin dehydrogenase mutant and alcohol dehydrogenase as a biocatalyst, thereby solving the problems of existing L-phosphinothricin synthesis being tedious, low asymmetric amination reduction activity and poor stability.

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.