CAS: 638-23-3; S-(Carboxymethyl)-L-Cysteine

相似化合物

4033-46-9 50698-76-5 175131-93-8

上下游产品

L-Cysteine Iodoacetic acid chloroacetic acid L-cystineS-Carboxymethyl-L-cysteine-sulfoxide N-benzoyl-S-carboxymethyl-L-cysteineN-benzoyl-S-carboxymethyl-L-cysteine S-Carboxymethyl-L-cysteine-(4S)-sulfoxide S-Carboxymethyl-L-cysteine-(4R)-sulfoxide

L-胱氨酸 以 Sodium Hydroxide,水 作为反应溶剂,化学反应生成 羧甲司坦
参考文献:Process For The Production Of High Purity S-Carboxymethyl-L-Cysteine
标题:Process For The Production Of High Purity S-Carboxymethyl-L-Cysteine
摘要:通过在液氨中将l-半胱氨酸与金属钠反应以形成l-半胱氨酸的二钠盐,蒸发氨气,然后将l-半胱氨酸的二钠盐与氯乙酸水溶液反应,并通过使反应混合物酸化来沉淀所形成的s-羧甲基-L-半胱氨酸,制备非常纯净的s-羧甲基-L-半胱氨酸.根据氯乙酸,使用0.1至10重量百分比的还原剂.

专利信息

专利号:US-7344863-B2
优先权日:1998-03-13
标题:Methods for producing polypeptides through enhanced synthesis of encoding nucleic acid molecules
发明人：LI WU-BO; JESSEE JOEL A; SCHUSTER DAVID; XIA JIULIN; GEBEYEHU GULILAT
权利人:INVITROGEN CORP
摘要:The present invention is directed to compositions and methods for enhancing synthesis of nucleic acid molecules, particularly GC-rich nucleic acid molecules. Specifically, the invention provides compositions comprising one or more nitrogen-containing organic compounds having a formula selected from the group consisting of formula I and formula II (or salts or derivatives thereof), preferably 4-methylmorpholine N-oxide or betaine (carboxymethyltrimethylammonium), and further comprising one or more compounds selected from the group consisting of proline and an N-alkylimidazole compound, and more preferably proline, 1-methylimidazole or 4-methylimidazole. The invention further relates to methods for enhanced, high-fidelity synthesis of nucleic acid molecules, including via amplification (particularly PCR), reverse transcription, and sequencing methods. The invention also relates to nucleic acid molecules synthesized by these methods, to fragments or derivatives thereof, and to vectors and host cells comprising such nucleic acid molecules, fragments, or derivatives. The invention also relates to kits for synthesizing, amplifying, reverse transcribing or sequencing nucleic acid molecules comprising one or more of the compositions of the invention.

专利号:US-6376649-B1
优先权日:1998-12-18
标题 :Methods for the synthesis of α- hydroxy-β-amino acid and amide derivatives
发明人：SEMPLE JOSEPH E; LEVY ODILE E
权利人:CORVAS INT INC
摘要:Methods for the synthesis of alpha-hydroxy-beta-amino acid and amide derivatives and alpha-ketoamide derivatives and novel derivatives made by these methods are provided. These methods involve reacting a N-terminally blocked (protected) aminoaldehyde with an isonitrile and a carboxylic acid to give an amino-alpha-acyloxy carboxamide. The acyloxy group may be removed to give the derivative. Alternatively the protecting group is removed and acyl shift occurs to give the derivative. These derivatives are useful in the synthesis of compounds such as peptidyl alpha-ketoamides and alpha-hydroxy-beta-carboxylic acid and amide derivatives. Certain of these compounds have been reported to have activity as inhibitors of proteases, such as serine proteases and cysteine proteases.

专利号:EP-0790982-B1
优先权日:1994-06-17
标 题 :Methods of synthesis of peptidyl argininals
发明人：WEBB THOMAS R; REINER JOHN E; TAMURA SUSAN Y; RIPKA WILLIAM C; DAGNINO RAYMOND JR; NUTT RUTH F
权利人:CORVAS INT INC
摘要:This invention provides solution-phase and solid-phase methods for the synthesis of peptidyl argininals and to novel reagents useful therein, which have formula (I), wherein R1 is selected from the group consisting of hydrogen, benzyloxycarbonyl, isonicotinyloxycarbonyl, 2-chlorobenzyloxycarbonyl, 4-methoxybenzyloxycarbonyl, t-butoxycarbonyl, t-amyloxycarbonyl, isobornyloxycarbonyl, adamantyloxycarbonyl, 2-(4-biphenyl)-2-propyloxycarbonyl, 9-fluorenylmethoxycarbonyl and methylsulfonylethoxycarbonyl; R2 is selected from the group consisting of alkyl of 1 to about 12 carbon atoms and aralkyl of about 7 to about 15 carbon atoms, either of which is optionally substituted with hydroxy or -CO-Y, wherein Y is hydroxy, alkoxy of 1 to about 12 carbon atoms, aralkoxy of about 7 to about 15 carbon atoms, O-polymeric support or NH-polymeric support; R3 is selected from the group consisting of hydrogen, Fmoc, nitro, benzyloxycarbonyl, t-butoxycarbonyl and adamantyloxycarbonyl; and R4 is selected from the group consisting of hydrogen, alkyl of 1 to about 12 carbon atoms, aryl of about 6 to about 14 carbon atoms and aralkyl of about 7 to about 15 carbon atoms; and salts thereof.

专利号:US-8450365-B2
优先权日:2009-05-12
标 题 :Efficient synthesis of galanthamine
发明人：MAGNUS PHILIP D; FAUBER BEN; SANE NEERAJ
权利人:MAGNUS PHILIP D; FAUBER BEN; SANE NEERAJ; UNIV TEXAS
摘要:The present invention relates to methods for the synthesis of galanthamine, morphine, intermediates, salts and derivatives thereof. In preferred embodiments, the invention relates to methods for improving the efficiency and overall yield of said morphine, morphine related derivatives and intermediates thereof. In further embodiments, the invention relates to methods for improving the efficiency and overall yield of galanthamine and intermediates thereof.

专利号:US-5731413-A
优先权日:1994-06-17
标 题:Method of synthesis of peptidyl aldehydes
发明人：WEBB THOMAS ROY; REINER JOHN EUGENE; TAMURA SUSAN YOSHIKO; RIPKA WILLIAM CHARLES; DAGNINO JR RAYMOND; NUTT RUTH FOELSCHE
权利人:CORVAS INT INC
摘要:This invention provides solution-phase and solid-phase methods for the synthesis of peptidyl argininals and to novel! reagents useful therein.

专利号:US-2003180804-A1
优先权日:2001-10-29
标题:Solid phase synthesis of chemical libraries
发明人：PRYOR KENT E; LEWIS RONALD D; BROWN JASON W
权利人:CORVAS INT INC
摘要:The present invention provides compounds and compound libraries that are useful as protease modulators. The compounds and compound libraries are preferably made using the methods of the present invention which utilize peptide synthesis and combinatorial chemistry methods on a solid phase.