CAS: 7493-95-0; (2R,3R,4S,5R,6R)-2-(Hydroxymethyl)-6-(4-Nitrophenoxy)Tetrahydro-2H-Pyran-3,4,5-Triol

相似化合物

3150-24-1 10357-27-4 35599-02-1

上下游产品

CAS号100-02-7 对硝基苯酚 | CAS号17042-39-6 (4-硝基)苯基-2,3,4,... | CAS号25878-60-8 1,2,3,4,6-D-葡萄糖五乙酸酯 | CAS号572-10-1 2,3,4,6-Tetra-O... | CAS号3068-32-4 2,3,4,6-四乙酰氧基-a... | CAS号59-23-4 半乳糖 | CAS号470-55-3 水苏糖 | CAS号512-69-6 棉籽糖 | CAS号10257-28-0 D-吡喃葡萄糖 | CAS号100-02-7 对硝基苯酚 | CAS号110891-71-9 α-D-Galp-(1->3)... | CAS号14609-74-6 Phenol, 4-nitro... | CAS号29781-32-6 对硝基苯基3,4-O-异亚丙基...

1,2,3,4,6-D-葡萄糖五乙酸酯置于1,1-二氯甲醚,三氟化硼,Sodium Methylate体系中,用 甲醇,六甲基磷酰三胺 作为反应溶剂,化学反应 6.0H,反应生成 4-硝基苯基-α-D-吡喃半乳糖苷
参考文献:Apparu,Maecel; Blanc-Muesser,Michele; Defaye,Jacques,Canadian Journal Of Chemistry,1981,Vol. 59,P. 314-320
标题:Apparu,Maecel; Blanc-Muesser,Michele; Defaye,Jacques,Canadian Journal Of Chemistry,1981,Vol. 59,P. 314-320

专利信息

专利号:US-2004058888-A1
优先权日:2000-01-13
标题:Methods for synthesis of alpha-d-gal (1~>3) gal-containing oligosaccharides
发明人：BORNAGHI LAURENT; DEKANY GYULA; DRINNAN NICHOLAS BARRY; PAPAGEORGIOU JOHN; WEST MICHAEL LEO
摘要:This invention relates to reagents and methods for synthesis of biologically active di- and tri-saccharides comprising α-D-Gal(1→3)-D-Gal. In particular the invention provides novel reagents, intermediates and processes for the solution or solid phase synthesis of α-D-galactopyranosyl-(1→3)-D-galactose, and derivatives thereof. In one preferred embodiments the invention provides a protected monosaccharide building block of general formula (II): in which R 3 is methoxy or methyl; R 1 is H, benzoyl, pivaloyl, 4-chlorobenzoyl, acetyl, chloroacetyl, levulinoyl, 4-methylbenzoyl, benzyl, 3,4-methylenedioxybenzyl, 4-methoxybenzyl, 4-chlorobenzyl, 4-acetamidobenzyl, or 4-azidobenzyl; and R 2 is H, Fmoc, benzoyl, pivaloyl, 4-chlorobenzoyl, acetyl, chloroacetyl, levulinoyl, 4-methylbenzoyl, benzyl, 3,4-methylenedioxybenzyl, 4-methoxybenzyl, 4 -chlorobenzyl, 4-acetamidobenzyl, or 4-azidobenzyl.

专利号:US-11512303-B2
优先权日:2017-05-27
标 题 :Engineered polypeptides and their applications in the synthesis of beta-hydroxy-alpha-amino acids
发明人：CHEN HAIBIN; BONG YONG KOY; XU QING; ZHOU AMENG; SHEN TIANRAN; YANG JIADONG; YANG ZHUHONG
权利人:ENZYMASTER NINGBO BIO ENG CO LTD
摘要:The present invention provides engineered polypeptides that are useful for the asymmetric synthesis of β-hydroxy-α-amino acids under industrial-relevant conditions. The engineered polypeptides disclosed in this invention were developed through directed evolution based on the ability of catalytic synthesis of (2S, 3R)-2-amino-3-hydroxy-3-(4-nitrophenyl) propanoic acid. The present disclosure also provides polynucleotides encoding engineered polypeptides, host cells capable of expressing engineered polypeptides, and methods of producing β-hydroxy-α-amino acids using engineered polypeptides. Compared to other processes of preparation, the use of the engineered polypeptides of the present invention for the preparation of β-hydroxy-α-amino acids results in high purity of the desired stereoisomers, mild reaction conditions, low pollution and low energy consumption. So, it has good industrial application prospects.

专利号:US-5532147-A
优先权日:1991-08-06
标题:Enzymatic method for synthesis of carbohydrates
发明人：NILSSON KURT
摘要:A synthetic method in which is included at least one process, which is characterized by that a glycosidase (EC 3.2) is used to catalyse a reaction between a partially protected galactose derivative, or a partially protected glucose derivative, and a glycosyl doner, which is an oligosaccharide or a monosaccharide glycoside, is described. The process is suitable for synthesis of carbohydrate derivatives or for synthesis of partially protected carbohydrate intermediates which are suitable for further synthesis e.g. of blood group determinants A and B, or other carbohydrates.

专利号:US-2025188502-A1
优先权日:2022-03-10
标 题 :Biocatalyst and method for the synthesis of ubrogepant intermediates
发明人：CHEN HAIBIN; HU HU; CAI BAOQIN; XU JUNPENG; LIU SITONG; JIN LUPING; WU XINWEI; CUI QINYAN; ZHANG CHENGXIAO; ZHU KAILONG
权利人:ENZYMASTER NINGBO BIO ENG CO LTD
摘要:This application provides engineered transaminase polypeptides for the synthesis of Ubrogepant intermediates with high stereoselectivity, high catalytic activity and good stability. This application also provides a reaction process for the asymmetric synthesis of Ubrogepant intermediates using the transaminase polypeptide.

专利号:US-5856143-A
优先权日:1993-05-14
标 题 :N-containing saccharides and method for the synthesis of N-containing saccharides from amino-deoxy-disaccharides and amino-deoxy-oligosaccharides
发明人：NILSSON KURT G I
权利人:BIOFLEXIN AB
摘要:Synthesis of an amino-disaccharide, amino-oligosaccharide or a derivative thereof, characterized in that a monosaccharide, a disaccharide, an oligosaccharide, a glycoside or a derivative thereof, in the presence of a glycosidase as catalyst, is reacted with an amino-deoxy-saccharide or a derivative thereof, and that the amino-saccharide is isolated from the product mixture directly or after chemical/enzymatic modification.

专利号:US-6183994-B1
优先权日:1993-05-14
标题:N-containing saccharides and method for the synthesis of N-containing saccharides from amino-deoxy-disaccharides and amino-deoxy-oligosaccharides
发明人：NILSSON KURT G I
权利人:BIOFLEXIN AB
摘要:Synthesis of an amino-disaccharide, amino-oligosaccharide or a derivative thereof, characterized in that a monosaccharide, a disaccharide, an oligosaccharide, a glycoside or a derivative thereof, in the presence of a glycosidase as catalyst, is reacted with an amino-deoxy-saccharide or a glycoside or derivative thereof, and that the amino-saccharide is optionally isolated from the product mixture directly or after chemical/enzymatic modification.