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形狀
powder or solid
分子量
PEG average Mn 10,000
PEG ~10,000 Da
顏色
off-white to pale yellow
儲存溫度
2-8°C
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一般說明
Methoxy poly(ethylene glycol) KAT 10K (mPEG KAT 10K) is a monofunctional, methyl ether PEG featuring a terminal potassium acyltrifluoroborate for facile, rapid functionalization. Potassium acyltrifluoroborates (KATs) are stable functional groups that undergo rapid amide-forming ligations with hydroxylamines in aqueous media, in the presence of unprotected functional groups. In addition to its compatibility, these reactions proceed relatively quickly, lending to their use with sensitive biological reagents. This conjugation reaction offers a new approach to the synthesis of complex molecules without the complication of side reactions, such protein-polymer conjugates. KATs also undergo amide or imide-forming ligations in acidic conditions when reacted with primary amines or amides, respectively, as an alternative to classical acylation chemistry.
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
Critical evaluation and rate constants of chemoselective ligation reactions for stoichiometric conjugations in water.
Saito, et al.
ACS Chemical Biology, 10, 1026-1033 (2015)
Potassium Acyltrifluoroborate (KAT) Ligations are Orthogonal to Thiol-Michael and SPAAC Reactions: Covalent Dual Immobilization of Proteins onto Synthetic PEG Hydrogels.
Mazunin D, et al.
Helvetica Chimica Acta, 100 (2) (2017)
Alberto Osuna Gálvez et al.
Journal of the American Chemical Society, 139(5), 1826-1829 (2017-01-25)
Current methods for constructing amide bonds join amines and carboxylic acids by dehydrative couplings-processes that usually require organic solvents, expensive and often dangerous coupling reagents, and masking other functional groups. Here we describe an amide formation using primary amines and
Fumito Saito et al.
ACS chemical biology, 10(4), 1026-1033 (2015-01-13)
Chemoselective ligation reactions have contributed immensely to the development of organic synthesis and chemical biology. However, the ligation of stoichiometric amounts of large molecules for applications such as protein-protein conjugates is still challenging. Conjugation reactions need to be fast enough
Hidetoshi Noda et al.
Journal of the American Chemical Society, 136(15), 5611-5614 (2014-04-02)
The identification of fast, chemoselective bond-forming reactions is one of the major contemporary challenges in chemistry. We show that chemoselective amide-forming ligations of potassium acyltrifluoroborates (KATs) and O-carbamoylhydroxylamines proceed in the presence of all unprotected functional groups with a second-order
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