欧美自拍另类欧美宗合图片区,国产视频一区二区三区四区,日本一区二区三区四区视频,婬片一区AAA毛片一区二区

商品編號


8523350001



品牌


西格瑪奧德里奇(Sigma-Aldrich)



公司


Merck & Co., Inc.



公司分類(lèi)


Chemistry



Size

8523350001

商品信息

.safetyRow { clear: both; } .safetyLeft { width: 210px; float: left; }
Synonym:

N-α-Fmoc-L-aspartic acid α-2-phenylisopropyl ester

CAS Number
207305-95-1



Linear Formula
C??H??NO?



Molecular Weight
473.52?g/mol

Properties:

Related Categories

Amino Acids & Derivatives, Aspartic Acid, Chemical
BIOLOG
y, Chemical Synthesis, Peptide Chemistry
Description:
Background information

Quasi-orthogonally-protected Asp derivative.
The 2-PhiPr group can be removed selectively in the presence of tBu-based protecting groups by treatment with 1% TFA in DCM [1], making this derivative an extremely useful tool for the preparation of cyclic peptides by Fmoc SPPS [2] or for library synthesis. For the on-resin synthesis of side-chain to side-chain lactam bridged peptides, the combination of Lys(Mtt) and Asp(O-2-PhiPr) is particularly advantageous since both side-chains can be simultaneously unmasked in a single step.
This protecting group has also been used in solution to prepare bicyclic helix initiating peptides [3, 4].
Safety:

HS Code?

2924 29 70



Storage class?

10 - 13 Other liquids and solids



WGK?

WGK 2 water endangering



Disposal?

3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.