Embodiment 2 [0048] Example 2: Synthesis of Intermediate I [0049] [0050] R 1 =Fmoc, R 3 =Fmoc [0051] Weigh 50.00g Fmoc-L-His(Fmoc)-OH into 500ml dichloromethane, stir, add 21.55g DIPEA (2.00eq) to the reaction flask, stir to dissolve, and add 14.21g DIC (1.35g) to the reaction flask in turn eq), 15.21g HOBt (1.35eq), 19.58g 2-aminoisobutyric acid tert-butyl ester hydrochloride (1.20eq), stirred for 6 hours, the reaction was complete, the reaction solution was concentrated, the residue was dissolved in 300ml EA, and the organic phase was dissolved in 300ml Washed twice with purified water, washed once with 300ml of saturated aqueous sodium chloride solution, separated, collected the organic phase, concentrated the organic phase to 100g, controlled the temperature to 0-10C, added the concentrated dropwise to 750ml of petroleum ether for crystallization, and finished the dropwise addition After that, the mixture was kept at 0-10C and stirred for 30 minutes, filtered, and the fil

Our articles on Insulin Resistance Explained, Postprandial Glucose Dysregulation, and HOMA-IR and Insulin Resistance explore these connections in more detail
Gut 68 , 14171429 (2019)
So if I do have a drink, I may risk increasing the inflammation and I don't want to do that
Effects can last 1-4 weeks depending on your individual metabolism and B12 levels