摘要:
The invention provides compound of the general formula: in which each X independently represents a polymer chain; n represents an integer greater than 1; Q represents a linker; Y represents an amide group; and Z represents either —CH.(CH2L)2 or —C(CH2L)(═CH2), in which each L independently represents a leaving group. The compounds are useful reagents for the conjugation of polymers to proteins, the resulting conjugates being novel and also forming part of the invention.
摘要:
The invention provides compound of the general formula: in which each X independently represents a polymer chain; n represents an integer greater than 1; Q represents a linker; Y represents an amide group; and Z represents either —CH.(CH2L)2 or —C(CH2L)(═CH2), in which each L independently represents a leaving group. The compounds are useful reagents for the conjugation of polymers to proteins, the resulting conjugates being novel and also forming part of the invention.
摘要:
The invention concerns a water soluble compound of formula (a) wherein: A represents naphthyl or phenyl; and Ar1 and Ar2 independently represent a saturated or aromatic carbocyclic group; Xa, Xb are independently selected among an amino group, an ammonium group and an amino group modified by a linear polyoxyalkylene chain, provided that at least one of Xa and Xb represents ammonium or modified amino.
摘要翻译:本发明涉及式(a)的水溶性化合物,其中:A表示萘基或苯基; Ar 1和Ar 2独立地表示饱和或芳族碳环基团; Xa,Xb独立地选自氨基,铵基和通过线性聚氧化烯链改性的氨基,条件是Xa和Xb中的至少一个表示铵或改性氨基。
摘要:
Disclosed are multi-arm polyethylene glycol derivatives having structure of formula I or formula VI. Compared with straight chain polyethylene glycol, multi-arm polyethylene glycol has a plurality of terminal groups, thus has a plurality of introducing points of functional groups and can support a plurality of reactive terminal groups, thereby enabling multi-arm polyethylene glycol to have more flexibility and wider range of application.
摘要:
A method for producing a polyoxyalkylene derivative including: step (A) in which a polyoxyalkylene derivative having hydroxyl group(s) is reacted with a phthalimide derivative in the presence of an azo reagent and a phosphine reagent; step (B) in which the phthalimide groups of the compound obtained in step (A) are deprotected using a compound having a primary amino group; and step (C) in which impurities derived from the phthalimide derivative and the deprotection reagent are removed by adsorption or extraction.
摘要:
A fluorinated polyoxyalkylene glycol diamide surfactant of formula 1 B—X—COCH2O—[—CpH2pO—]n—CH2CO—X—Ra (1) wherein B is M or Ra, M is an ionizable hydrogen, ammonium, alkali metal, or alkaline earth metal, p is from about 2 to about 4, n is from about 5 about 43, each X is independently NR, SCH2CH2NR, SO2NRCH2CH2NR, or SO2CH2CH2NR; R is hydrogen, or a linear or branched alkyl group CbH(2b+1) wherein b is 1 to about 18, Ra is Rf(CH2CF2)d—(CgH2g)—; Rf(OCF2CF2)r—(CgH2g)—; RfOY—; Rf(CH2)h[(CF2CF2)i(CH2CH2)j]k—; Rf(CgH2g)—; or H(CcF2c)—(CgH2g)—; Y is CFHCF2O(CwH2w)—; or CF(CF3)CONH—(CgH2g)—; and each Rf is independently CcF(2c+1) wherein c is 1 to about 6.
摘要:
A maleimide-functionalized gold nanoparticle is described herein. More specifically, a maleimide-functionalized gold nanoparticle of formula (I): is described, wherein “n” and “m” are integers independently ranging from 1 to 100.
摘要:
The invention provides compound of the general formula: in which each X independently represents a polymer chain; n represents an integer greater than 1; Q represents a linker; Y represents an amide group; and Z represents either —CH.(CH2L)2 or —C(CH2L)(═CH2), in which each L independently represents a leaving group. The compounds are useful reagents for the conjugation of polymers to proteins, the resulting conjugates being novel and also forming part of the invention.
摘要:
A lubricating oil composition of improved rust inhibitory capability contains a small amount of the sulfate of an oxyalkylenated alcohol or phenol having a molecular weight of about 500-5,000.
摘要:
Disclosed are multi-arm polyethylene glycol derivatives having structure of formula I or formula VI. Compared with straight chain polyethylene glycol, multi-arm polyethylene glycol has a plurality of terminal groups, thus has a plurality of introducing points of functional groups and can support a plurality of reactive terminal groups, thereby enabling multi-arm polyethylene glycol to have more flexibility and wider range of application.