3350-30-9Relevant articles and documents
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Prelog et al.
, p. 471,479 (1953)
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Sethi,D.S. et al.
, p. 2632 - 2634 (1968)
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Synthesis of Cyclic Peptide Mimetics by the Successive Ring Expansion of Lactams
Stephens, Thomas C.,Lodi, Mahendar,Steer, Andrew M.,Lin, Yun,Gill, Matthew T.,Unsworth, William P.
, p. 13314 - 13318 (2017/10/05)
A successive ring-expansion protocol is reported that enables the controlled insertion of natural and non-natural amino acid fragments into lactams. Amino acids can be installed into macrocycles via an operationally simple and scalable iterative procedure, without the need for high dilution. This method is expected to be of broad utility, especially for the synthesis of medicinally important cyclic peptide mimetics.
Oxidation catalytic system and oxidation process using the same
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, (2008/06/13)
A substrate (e.g., a cycloalkane, a polycyclic hydrocarbon, an aromatic compound having a methyl group or methylene group adjacent to an aromatic ring) is oxidized with oxygen in the presence of an oxidation catalyst comprising an imide compound of the following formula (1) (e.g., N-hydroxyphthalimide), and a co-catalyst (except phosphovanadomolybdic acid) containing an element selected from the group consisting of Group 2A elements of the Periodic Table of Elements, transition metals (Group 3A to 7A elements, Group 8 elements, Group 1B elements and Group 2B elements of the Periodic Table of Elements) and Group 3B elements of the Periodic Table of Elements, for the formation of an oxide (e.g., a ketone, an alcohol, a carboxylic acid): STR1 wherein R1 and R2 represent a substituent such as a hydrogen atom or a halogen atom, or R1 and R2 may together form a double bond or an aromatic or nonaromatic 5- to 12-membered ring, X is O or OH, and n is 1 to 3.
