CAS: 4744-50-7; 2,3-Pyrazinecarboxylic Anhydride

相似化合物

90196-41-1 144692-85-3 41110-29-6

上下游产品

2,3-吡嗪二羧酸 2,3-Dicarboxypyrazine 89-01-0

喹喔啉 反应生成 2,3-吡嗪二酸酐
参考文献:Foye,W.O.; Kauffman,J.M.,Chimica Therapeutica,1967,Vol. 2,P. 462-466
标题:Foye,W.O.; Kauffman,J.M.,Chimica Therapeutica,1967,Vol. 2,P. 462-466

专利信息

专利号:US-4151205-A
优先权日:1975-01-27
标题 :Synthesis of vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.

专利号:US-4051153-A
优先权日:1975-01-27
标题 :Intermediates in the synthesis of vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.

专利号:US-7122693-B2
优先权日:1988-04-11
标题 :Acetaldehyde acetal compounds, their synthesis, and uses thereof
发明人：BELLEAU EXECUTRIX OF ESTATE PI; DIXIT DILIP M; NGUYEN-BA NGHE
权利人:SHIRE BIOCHEM INC
摘要:The acetaldehyde compounds, 2-thiobenzoylacetaldehyde diethylacetal, 2-benzoyloxyacetaldehyde bis(2-methoxyethyl)acetal, 2-hydroxyacetaldehyde bis( 2-methoxyethyl)acetal, 2-thiobenzoylacetaldehyde bis(2-methoxy-ethyl)acetal, and 2-thioacetaldehyde bis(2-methoxyethyl)acetal, are useful as intermediates in the synthesis of substituted 1,3-oxathiolanes and substituted 1,3-dioxolanes.

专利号:US-9994508-B2
优先权日:2012-12-11
标 题:Versatile and functionalised intermediates for the synthesis of vitamin D and novel vitamin D derivatives
发明人：LOPEZ PEREZ BORJA; SIGUEIRO PONTE RITA; MAESTRO SAAVEDRA MIGUEL A; MOURINO MOSQUERA ANTONIO
权利人:ENDOTHERM GMBH
摘要:Novel intermediates for the complete synthesis of vitamin D are provided that allow a great versatility of functional groups in the final vitamin derivatives. Vitamin derivatives that are epimeric in position 3 and vitamin derivatives with a wide range of functionalities in position 18, including compounds with isotopic labelling are provided.

专利号:WO-9419366-A1
优先权日:1993-02-26
标题 :Chemical synthesis of squalamine
发明人：MORIARTY ROBERT M; GUO LIANG; TULADHAR SUDERSAN M
权利人:MAGAININ PHARMA
摘要:Methods for the chemical preparation or synthesis of the sterol antibiotic squalamine. Preferably, the preparation is by modifying the 3-position of a 3-oxo-7α-hydroxy-24z-ether protected alcohol group-5α-cholestane with a spermidino moiety to form a 3β-spermidino-7α-hydroxy-24z-ether protected group -5α-cholestane; deprotecting the 24-position of the 3β-spermidino-7α-hydroxy-24z-ether protected group-5α-cholestane to the free hydroxyl; and sulfating the 24-position of the 3β-spermidino-7α, 24-dihydroxy-5α-cholestane.

专利号:US-4219489-A
优先权日:1978-09-05
标题:Synthesis of steroids
发明人：BUNES LEONARD A; JOHNSON WILLIAM S
权利人:STANFORD LELAND JUNIOR UNIV TR
摘要:Method and compounds are provided for use in the synthesis of steroids wherein a polyolefin is provided having an initiating group having a chalcogen atom in juxtaposition to a double bond, so as to be capable of bond formation to close to form a ring and having a terminating group involving pi unsaturation (a double or triple bond) conjugated to an aromatic ring. Upon acid catalysis, sigma bonds are formed through the interaction of a carbocation formed at the carbon atom bonded to the chalcogen atom and the double bond intermediate the initiating group and the terminating group, which close to form rings of a steroid nucleus, the carbocation interacting with the pi unsaturation conjugated with the aromatic group and being captured by a nucleophile present in the acidic reaction medium. The resulting steroid product may then be modified in known ways to produce known steroids.