Synthesis of phenoxyacetyl-N-(hydroxydioxocyclobutenyl)cycloserines
摘要:
The synthesis and antibacterial activity of a potential antibiotic, phenoxyacetyl-(L)-cycloserine activated by a cyclobutenedione moiety, is described.
Olefination of dialkyl squarates 1–5 with several ylides 6 and phosphonates 7 gave the corresponding alkylidene products 8–12. In the case of Horner-Emmonsreactions, stereoselective formation of Z-alkylidene products was observed. An acid-catalyzed hydrolysis of 8–12 gave squarylacetic acid esters 13.
N-amidopiperidinyl (3/4)-oder N-amidino-1,4-oxazinyl(2)-substituierte Sulfonamide, Verfahren zur Herstellung und Verwendung als Thrombin-Inhibitoren
申请人:F.HOFFMANN-LA ROCHE & CO. AKTIENGESELLSCHAFT
公开号:EP0559046A1
公开(公告)日:1993-09-08
Die neuen Sulfonamidocarboxamide der Formel
worin
Xeine Gruppe der Formel X¹ oder X²:
TCH₂ oder O,
und A, M, Q, und Y die in der Beschreibung angegebene Bedeutung haben, sowie Hydrate oder Solvate davon hemmen die durch Thrombin induzierte Plättchenaggregation und Gerinnung von Fibrinogen im Plasma. Sie werden hergestellt durch Amidinierung einer für die Gruppierung X stehenden cyclischen Aminogruppe oder durch C(O)N(Q) Amidbildung.
新的磺酰胺类甲酰胺的化学式为
式中
X 是式 X¹ 或 X² 的基团:
TCH₂ 或 O、
和 A、M、Q 和 Y 具有说明中给出的含义,其水合物或溶液可抑制凝血酶诱导的血小板聚集和血浆中纤维蛋白原的凝固。它们是通过代表基团 X 的环状氨基酰胺化或通过 C(O)N(Q) 酰胺形成制备的。
DE2616756
申请人:——
公开号:——
公开(公告)日:——
NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SAME
申请人:Odani Toru
公开号:US20080226983A1
公开(公告)日:2008-09-18
The invention provides a non-aqueous electrolyte including: at least one kind selected from the compounds represented by Chemical formula 1:
wherein R1 and R2 each represent a hydrogen group, a hydrocarbon group or an alkylsilyl group, or any of these groups part or all of the hydrogen atoms of which is/are substituted with a halogen, R1 and R2 may be bonded to each other, and n is an integer of 1 or larger.
POLYMER HAVING OXOCARBON GROUP, AND USE THEREOF
申请人:Yoshimura Ken
公开号:US20090110994A1
公开(公告)日:2009-04-30
The present invention provides a novel polymer composed of polyarylene in the main chain and having oxocarbon groups which is particularly useful in battery and fuel cell applications.