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A. Alkohol 1. Trimethylsilyl ether (TMS) 2. Triethylsilyl ether (TES)

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A. Alkohol1. Trimethylsilyl ether (TMS)

2. Triethylsilyl ether (TES)

3. Triisopropylsilyl ether (TIPS)

4. Tert-Buthyldimethylsilyl ether (TBS)

5. Tert-Buthyldiphenylsilyl ether

6. Acetate

7. Benzoate

8. Benzyl ether

9. 4-Methoxybenzyl ether

10. 2-Naphthylmethyl ether

11. Methoxymethyl acetal

12. 2-Methoxyethoxymethyl ether

13. Ethoxyethyl acetal

14. Methoxypropyl acetal

15. Benzyloxymethyl acetal

16. Tetrahydropylanyl acetal

17. 2,2,2-Trichloroethyl carbonate

18. Methyl ether

B. Phenols1. TIPS

2. TBS

3.