A dipeptide on hydrolysis gives two amino acids X and Y. If the dipeptide is first treated with HNO2 and then hydrolysis is carried out, X and lactic acid are obtained. X on heating gives 2,5-diketopiperazine. Identify X and Y, write their sequence in the dipeptide
Ak, mấy anh chị làm giùm em đi, em đâu biết làm chứ đâu phải đó