摘要:
The instant invention describes a method for crystallizing (null)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one from a solvent and anti-solvent solvent system and producing the crystalline product. The desired final crystal form, Form I, can be produced when using methanol or ethanol. Form II is isolated from 2-propanol and can be converted to the desired crystal form at low drying temperatures, such as between about a temperature of 40null C. and 50null C.
摘要:
Novel compounds of formula I: 1 including its pharmaceutically acceptable isomers, salts, hydrates, solvates and prodrug derivatives having activity against mammalian factor Xa is described. Compositions containing such compounds are also described. The compounds and compositions are useful in vitro or in vivo for preventing or treating conditions in mammals characterized by undesired thrombosis.
摘要:
A class of compounds for the treatment of viral infections. Compounds of particular interest are defined by Formula I 1 wherein R-R4 are as defined herein, or a pharmaceutically-acceptable salt thereof.
摘要:
The present invention relates to novel antiobesity and hypocholesterolemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. More particularly, the present invention relates to novel .beta.-aryl-.alpha.-oxysubstituted alkylcarboxylic acids of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. ##STR1##
摘要:
A process for the preparation of SB 207266 or a pharmaceutically acceptable salt thereof, which process comprises the reaction of N-(1-.sup.n butyl-4-piperidyl)methylamine with a compound of formula (A), ##STR1## wherein R is alkyl.
摘要:
Substituted N-heterocyclyl-1-aryloxyalkyl-4-piperldineamines of formula (I) ##STR1## wherein each of R.sub.1 to R.sub.4, which are the same or different, is hydrogen, optionally branched C.sub.1-4 alkyl, optionally branched C.sub.1-4 alkyloxy, halo, nitro, hydroxy, or trifluoromethyl or trifluoromethoxyl; R.sub.5 is hydrogen, optionally branched C.sub.1-6 alkyl, optionally branched C.sub.7-12 phenylalkyl optionally substituted on the phenyl by one or more radicals having the same definition as R.sub.1 ; W and X are oxygen or sulphur; Y is C.sub.2-6 polymethylene or --CH.sub.2 --CH(OH)--CH.sub.2 --; and n is 0 or 1; and pure R or S isomers of said compounds, where applicable, as well as mixtures thereof, as well as therapeutically-acceptable organic or inorganic salts and hydrates of the compounds and a method for preparing the compounds and their use as drugs are all disclosed.
摘要:
An N-�2-(1-hydroxyethyl)-3-oxopropyl!amine compound of the formula �III!: ##STR1## wherein Ring B represents a benzene ring which may be substituted; W represents oxygen atom or sulfur atom; Y represents oxygen atom, sulfur atom or N R.sup.0, R.sup.0 represents hydrogen atom or a substituent; Z represents a substituted methylene group which contains at least one chiral center; R.sup.5 represents an aralkyloxycarbonyl group or an alkoxycarbonyl group; R.sup.6 represents hydrogen atom, an aralkyl group, an acyloxy group, a tri-substituted silyloxy group or an alkoxy group; or both of R.sup.5 and R.sup.6 bond at their termini and combine with the adjacent nitrogen atom to form phthalimido group, and a process thereof are disclosed. Said compound �III! is useful as a starting compound of .beta.-lactam antibacterial agents.
摘要:
A hydrazide compound represented by the following formula (I), and a silver halide photographic photonsensitive material comprising the hydrazide compound: A--(B).sub.b (I) wherein A represents a heterocyclic group, a condensed polycyclic aromatic group or a group formed by connecting at least two aromatic groups to each other, B represents a group represented by the following formula (I-B) or (II-B), and b represents an integer from 2 to 6; --L.sub.1 --Ar.sub.1 --NHNH--G.sub.1 --R.sub.1 (I-B) --L.sub.3 --Ar.sub.3 --L.sub.2 --Ar.sub.2 --NHNH --G.sub.2 --R.sub.2(II-B) wherein each of G.sub.1 and G.sub.2 represents a carbonyl group, an oxalyl group, a sulfonyl group or a phosphoryl group; each of R.sub.1 and R.sub.2 represents a hydrogen atom or a blocking group; each of Ar.sub.1, Ar.sub.2 and Ar.sub.3 represents an aromatic group or an aromatic heterocyclic group; and each of L.sub.1, L.sub.2 and L.sub.3 represents a linkage group.
摘要翻译:由下式(I)表示的酰肼化合物和包含酰肼化合物:A-(B)b(I)的卤化银照相光敏材料,其中A表示杂环基,稠合多环芳族基或由 将至少两个芳族基团相互连接,B表示由下式(IB)或(II-B)表示的基团,b表示2〜6的整数; -L1-Ar1-NHNH-G1-R1( IB)-L3-Ar3-L2-Ar2-NHNH -G2-R2(II-B)其中G1和G2各自表示羰基,草酰基,磺酰基或磷酰基; R 1和R 2各自表示氢原子或封端基; Ar 1,Ar 2和Ar 3各自表示芳香族基或芳香族杂环基, L1,L2和L3中的每一个表示连接组。
摘要:
A method for preparing a desired benzoxazine compound comprises preparing a substantially homogeneous reaction mixture that includes a phenolic compound; a primary amine; and an aldehyde, but no solvent other than for the solvency which the reactants may have for each other. Following its preparation, the reaction mixture is maintained at a temperature, and for a period sufficient to cause the reactants to combine chemically to form the desired compound.