(Szeged, Hungary)
H.BrooksA
(9)Fmoc-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val- (9) Preparation of Fmoc-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-resin: (8)Fmoc-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-1050530105010603DMF3DMF2DMFFmoc-Lys(Boc)-OHDIEATBTU/HOBtHBTU/HOBtBOP/HOBt105010603DMF3DMF2Fmoc-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val- In the Fmoc-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-resin in step (8), add the decapping reagent and react at 10-50C for 5-30 minutes, and dry it with a vacuum pump , re-add the decapping reagent and react at 10-50C for 10-60 minutes, drain, wash with isopropanol 3 times, DMF wash 3 times, re-distilled DMF wash 2 times, add Fmoc-Lys (Boc-Lys) dissolved in DMF )-OH, DIEA, TBTU/HOBt or HBTU/HOBt or BOP/HOBt mixture, react at 10-50C for 10-60 minutes, dry it with a vacuum pump, wash with isopropanol for 3 times, DMF for 3 times, redistill The DMF washed 2 times, drained to obtain Fmoc-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-resin
In less critically urgent cases of ammonia intoxication (sometimes in infants, sometimes in adults with liver failure) the treatment of choice is administration of the disaccharide lactulose, either orally or by rectal infusion
Lu R, Zhang X, Li X, Wan X
