Novel compounds are provided, which are useful as linking groups in chemical synthesis, preferably in the solid phase synthesis of oligonucleotides and polypeptides. These compounds are generally photolabile and comprise protecting groups which can be removed by photolysis to unmask a reactive group. The protecting group has the general formula Y, wherein Y is a chemical structure as shown in FIG.
1
. Also provided is a method of forming, from component molecules, a plurality of compounds on a support, each compound occupying a separate predefined region of the support, using the protected compounds described above.
Photocleavable Protecting Groups
申请人:Barone Anthony D.
公开号:US20100324266A1
公开(公告)日:2010-12-23
Novel compounds are provided, which are useful as linking groups in chemical synthesis, preferably in the solid phase synthesis of oligonucleotides and polypeptides. These compounds are generally photolabile and comprise protecting groups which can be removed by photolysis to unmask a reactive group. The protecting group has the general formula Y, wherein Y is a chemical structure as shown in FIG.
1
. Also provided is a method of forming, from component molecules, a plurality of compounds on a support, each compound occupying a separate predefined region of the support, using the protected compounds described above.
PRETREATMENT LIQUID FOR INKJET RECORDING, INKJET RECORDING APPARATUS, AND IMAGE FORMING METHOD
申请人:KYOCERA Document Solutions Inc.
公开号:US20210122935A1
公开(公告)日:2021-04-29
A pretreatment liquid for inkjet recording contains a photobase generator that produces an organic amine compound through light exposure. An inkjet recording apparatus forms an image on an image formation area of a recording medium. The inkjet recording apparatus includes a pretreatment section, a light exposure section, and a recording head. The pretreatment section ejects the pretreatment liquid for inkjet recording toward the image formation area of the recording medium. The light exposure section performs light exposure on the image formation area of the recording medium to which the pretreatment liquid for inkjet recording has been ejected. The recording head ejects an ink toward the image formation area of the recording medium subjected to the light exposure to form the image.
New Types of Very Efficient Photolabile Protecting Groups Based upon the[2-(2-Nitrophenyl)propoxy]carbonyl (NPPOC) Moiety
in a broad range depending on the substituents. So far, the thymidine 5′-[2-(5-halo-2-nitrophenyl)propyl carbonates] 127–129, 5′-[2-(nitro[1,1′-biphenyl]3-yl)propyl carbonates] 136–139, 5′-2-[2-nitro-5-(thianthren-1-yl)phenyl]propyl carbonate} (140), 5′-[2-(5-naphthalenyl-2-nitrophenyl)propyl carbonates] 141 and 142, and 5′-[2-(2-nitro-5-thienylphenyl)propyl carbonates] 143 and 144 showed the best