摘要:
A container cap (1) which is easy to classify and discard. The container cap (1) comprises a body portion (1a) and a projection (1b) provided substantially centrally on and integrally with the top surface (1a1) of the body portion (1a), and covers an opening of a bottle (vessel) (2) and a sealing plug which blocks the opening. Provided on the container cap (1) are first annular thin-walled portions (breakable portion) (5) extending partially around the periphery of the base portion of the projection (1b) for bending the projection (1b), a second thin-walled portion (breakable portion) (6) extending from one end of the first thin-walled portion (5) through the top surface (1a1) of the body portion (1a) to a lower end of an outer peripheral surface (1a2), a third thin-walled portion (breakable portion) (7) extending from the other end of the first thin-walled portion (5) to the outer peripheral edge of the top surface (1a1) of the body portion (1a) and fourth thin-walled portions (breakable portion) (8) extending from the midway of the first thin-walled portion (5) to the outer peripheral edge of the top surface (1a1) of the body portion (1a).
摘要:
An expectorant capable of acting on the rheological properties of sputum and capable of directly promoting the ciliary motion. The expectorant contains N-acetylneuraminic acid
摘要:
A monoclonal antibody is disclosed that specifically recognizes an epitope or an antigenic determinant represented by the following formula and specifically reacts therewith: The monoclonal antibody can be obtained by cultivating hybridoma cells which can be generated by a method comprising fusing (A) B cells or lymphocytes obtained by immunizing an animal with a substance involving the epitope or the antigenic determinant represented by the foregoing formula with (B) myeloma cells. The monoclonal antibody shows a high specificity for ganglioside GQ 1b and ganglioside GT 1a having a specific epitope and thus can detect the epitope with a high sensitivity. Therefore, the antibody can be used for the elucidation of sugar chain's roles in cell functions and for studying the development of animals. Moreover, the monoclonal antibody has various clinical applications.
摘要:
The present invention relates to a new process for preparing 3-O-(sodium(5-acetamide-3,5-dideoxy-alpha-D-glycero-D-galacto-2-noneuro pyranosyl)onate-1,2-di-O-tetradecyl-Sn-glycerol (3).
摘要:
Sialocylglycerolipids represented by the following general formula: wherein R 1 represents a hydrogen atom or a group CH 3 CO-; R 2 represents an alkali metal, a hydrogen atom or a lower alkyl group; R 3 represents a hydrogen atom or a group C n H 2n+1 - (n is an integer ranging from 1 to 30); and R 4 represents a group C m H 2m+1 - (m is an integer ranging from 1 to 30) are herein disclosed. They are prepared by treating a corresponding compound in an alkaline aqueous solvent. The method makes it possible to provide these compounds in a high yield by a simple processes.
摘要:
The present application discloses a new sialosyl glyceride having the following formula, which compound is useful as a remedy for nervous diseases, has an excellent compatibility with the living bodies, and is easily producible. wherein R¹ represents a hydrogen atom or XCH₂CO- (X being a halogen atom), R² represents an alkali metal, a hydrogen atom or a lower alkyl group, R³ represents a hydrogen atom or -CO(CH₂)mCH₃, R⁴ represents -CO(CH₂)mCH₃ and m and n each represents a number of 0 to 30.
摘要:
Sialocylglycerolipids represented by the following general formula: wherein R 1 represents a hydrogen atom or a group CH 3 CO-; R 2 represents an alkali metal, a hydrogen atom or a lower alkyl group; R 3 represents a hydrogen atom or a group C n H 2n+1 - (n is an integer ranging from 1 to 30); and R 4 represents a group C m H 2m+1 - (m is an integer ranging from 1 to 30) are herein disclosed. They are prepared by treating a corresponding compound in an alkaline aqueous solvent. The method makes it possible to provide these compounds in a high yield by a simple processes.
摘要翻译:由以下通式表示的唾液酸甘油脂:其中R 1表示氢原子或基团CH 3 CO-; R 2表示碱金属,氢原子或低级烷基; R 3表示氢原子或C n H 2n + 1-(n为1〜30的整数)的基团。 并且R 4表示基团C m H 2n + 1 - (m为1至30的整数)。 它们通过在碱性水溶剂中处理相应的化合物来制备。 该方法可以通过简单的方法以高产率提供这些化合物。
摘要:
A sialic acid derivative having an active carbonyl group represented by the formula [I]: (wherein R' represents hydrogen or acetyl group; R 2 represents hydrogen, a metal or a lower alkyl group; R 3 represents hydrogen, hydroxyl group, or a residue removed hydrogen from an alcohol portion of an active ester; Ac represents acetyl group; and n is 1 to 20, respectively). This sialic acid derivative [I] can be utilized as a starting material for various complex having a sialic acid in the molecule since it has an active carbonyl group in the molecule so that it shows high reactivity.