can glutathione tablets lighten skin as a whitening agent: Facts, myths, evidence and controversies Category_Immune Support

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(14)制备Fmoc-Glu(otBu)-Pro-Pro-Pro-Gly-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-树脂： (14) Preparation of Fmoc-Glu(otBu)-Pro-Pro-Pro-Gly-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-resin: 在步骤(13)的Fmoc-Pro-Pro-Pro-Gly-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-树脂中，加入脱帽试剂10～50℃反应5～30分钟，用真空泵抽干，重新加入脱帽试剂10～50℃反应10～60分钟，抽干，用异丙醇洗涤3次，DMF洗涤3次，重蒸过的DMF洗涤2次，加入用DMF溶解的Fmoc-Glu(otBu)-OH、DIEA、TBTU/HOBt或HBTU/HOBt或BOP/HOBt的混合物，10～50℃反应10～60分钟，用真空泵抽干，用异丙醇洗涤3次，DMF洗涤3次，重蒸过的DMF洗涤2次，抽干，获得Fmoc-Glu(otBu)-Pro-Pro-Pro-Gly-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-树脂； In the Fmoc-Pro-Pro-Pro-Gly-Lys(Boc)-Pro-Ala-Asp(otBu)-Asp(otBu)-Ala-Gly-Leu-Val-resin of step (13), add decapping reagent 10 React at ~50°C for 5-30 minutes, drain with a vacuum pump, re-add capping reagent at 10-50°C, react for 10-60 minutes, drain, wash with isopropanol for 3 times, DMF for 3 times, and distilled DMF Twice, add the mixture of Fmoc-Glu(otBu)-OH, DIEA, TBTU/HOBt or HBTU/HOBt or BOP/HOBt dissolved in DMF, react at 10-50°C for 10-60 minutes, dry with a vacuum pump, and use iso Propanol was washed 3 times, DMF was washed 3 times, the DMF that redistilled was washed 2 times, was sucked dry, obtained Fmoc-Glu(otBu)-Pro-Pro-Pro-Gly-Lys(Boc)-Pro-Ala-Asp( otBu)-Asp(otBu)-Ala-Gly-Leu-Val-resin

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Marchese S, Polo A, Ariano A, Velotto S, Costantini S, Severino L