Acylboranes are among the most elusive boron-containing organic functional groups, a fact that has impeded development of new reactions employing them as substrates. A new synthesis of acyltrifluoroborates from benzotriazole (Bt)-based N,O-acetals has been developed. Two other routes provide acyltrifluoroborates containing alcohols, aldehydes, and carbamates. The ketone-like reactivity of the acyltrifluoroborate functional group is demonstrated, and the first X-ray structure of an acyltrifluoroborate is reported.
[EN] CONJUGATION METHOD FOR CARRIER-LINKED PRODRUGS<br/>[FR] PROCÉDÉ DE CONJUGAISON POUR PROMÉDICAMENTS LIÉS À UN SUPPORT
申请人:ASCENDIS PHARMA AS
公开号:WO2018011266A1
公开(公告)日:2018-01-18
The present invention relates to reagents comprising a substituted acyl borate or a substituted hydroxyl amine, to a method of synthesizing a carrier-linked prodrug using said reagents and to carrier-linked prodrugs obtainable by said method.
Amide-Forming Ligation of Acyltrifluoroborates and Hydroxylamines in Water
作者:Aaron M. Dumas、Gary A. Molander、Jeffrey W. Bode
DOI:10.1002/anie.201201077
日期:2012.6.4
Come together, right now: Acyltrifluoroborates and O‐benzoyl hydroxylamines come together to form amides in water (see scheme). The ligations are complete within minutes at room temperature and do not require any reagents or catalysts. The reaction has a broad substrate scope and tolerates unprotected functional groups.
Post‐Assembly Photomasking of Potassium Acyltrifluoroborates (KATs) for Two‐Photon 3D Patterning of PEG‐Hydrogels
作者:Haewon Song、Dino Wu、Dimitry Mazunin、Sizhou M. Liu、Yoshikatsu Sato、Nicolas Broguiere、Marcy Zenobi‐Wong、Jeffrey W. Bode
DOI:10.1002/hlca.202000172
日期:2020.11
Chemical ligation reactions of functional groups that can be masked with two‐photon labile protecting groups provide a powerful technology for the three‐dimensional patterning of molecules – including proteins – onto hydrogel scaffolds. In order to utilize readily prepared hydrogels constructed by the potassium acyltrifluoroborate (KAT)‐hydroxylamine amide formation ligation for two‐photon patterning