New methods and reagents in organic synthesis, 29, A practical method for the preparation of optically acive N-protected .ALPHA.-amino aldehydes and peptide aldehydes.
Primary alcohols and chiral N-protected 2-amino alcohols can be obtained in high yields from the reaction of pentafluorophenyl esters of the corresponding carboxylic acids with sodium borohydride in THF under mild conditions. This reductive method is rapid and compatible with various functional groups as well as with the most common N-protective groups Z, Boc and Fmoc.
HETEROLOGOUS PRODUCTION OF LEUPEPTIN PROTEASE INHIBITORS AND ANALOGS THEREOF
申请人:YALE UNIVERSITY
公开号:US20220002354A1
公开(公告)日:2022-01-06
The present disclosure includes a construct comprising a leupeptin biosynthesis operon, the operon comprising leupA, leupB, leupC, and leupD genes operably linked to a promoter. Also included are cells comprising the construct, and methods for production of leupeptin peptide.