1. Aceclofenac was synthesized in 82 % overall yield from sodium diclofenac and t - butyl chloroacetate viaesterification and hydrolysis.

2. According to above results of optimization, the overall yield of ticlopidine hydrochloride is 21%.

3. Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination with 40.6%overall yield.

4. Fluticason propionate(1) in overall yield of 60.1% was synthesized from Flumethasone by oxidation, esterification, acylation, alcoholysis and fluoromethylation.

5. The overall yield was 38.3 % and the melting point was 131 - 133 jas.

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7. Phloroglucinol was prepared from sodium trinitrobenzoate through catalytic reduction and pressurizedhydrolysis in 62 % overall yield.

8. Antibacterial synergist trimethoprim was synthesized from p-cresol in an overall yield as high as 40.6%.

9. If the bond was purchased at a premium (above par), then your overall yield to maturity will be lower than your stated coupon rate.

10. The target compound was synthesized via 6 steps from chloroacetyl chloride in 27.7 % overall yield.

11. In this paper, bendazac lysine was synthesized from phenyl hydrazine by 4 steps, and an overall yield was up to 46.8%.

12. Mazindol was synthesized by four steps from chlorobenzene and phthalic anhydride an overall yield of 23.4 %.

13. Etiracetam was synthesized from 2-pyrrolidone by N-alkylation and aminolysis. The overall yield was 42.6%.

14. N-guanylurea dinitramide(GUDN) was synthesized with N-guanylurea hydrochloride as primary substance by hydrolysis and double decomposition reaction in turn and the overall yield of GUDN is 79%.

15. Aciclovir was synthesized by three steps including acylation, condensation and aminolysis from guanosine in 52% overall yield.

16. Oxidronate was prepared from triisopropyl phosphite by diphosphonation, chlorination, pyrolysis and reduction with 32 % overall yield.

17. The title compound was prepared from monomethyl sulfate and sodium acetyl ethenoxide, which was obtained from the reaction of acetone, sodium methoxide and methyl formate. The overall yield was 71.8%?

18. Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.

19. Acetamidobenzoic acid was synthesized from 2-nitrotoluene via oxidation with potassium permanganate, reduction with ion powder and amidation with acetyl chloride in an overall yield of 48.5%.

20. The stavudine was prepared from 5-methyluridine via six steps in 34% overall yield, in which the key step is the selective acylation of 5-methyluridine by propionyl chloride.

21. Synthesis processes and applications of tyramine were reviewed. A new synthesis method from phenol was studied, with mild reaction conditions and lower costs. The overall yield was 57%.

22. Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination overall yield.

23. Levetiracetam was prepared from L-methionine via reduction-dethiomethylation, esterification, ammonolysis, amidation and intramolecular cyclocondensation reaction with 44.6% overall yield.

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24. Moclobelide was synthesized from ethanolamine by nucleophilic substitution and Schotten-Baumann reaction, followed by condensation with an overall yield of 71.2%.

25. The soluble salt in water of Dimetridazole was synthesized with more than 95% overall yield by a simple and convenient method. This method was convenient to industrialize.

26. The 3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.

27. Celecoxib as a cyclooxygenase-2 inhibitor, was synthesized from p-methylacetophenone and ethyl trifluoroacetate by successively condensation and cyclization in 67% overall yield.

28. Kaempferol was synthesized form phloroglucinol and p hydroxybenzaldehyde in five steps. The overall yield is 25.7%.

29. Tinoridine hydrochloride was synthesized from benzylamine by condensation, cyclization, decarboxylation, cyclization and then salt formation in an overall yield of 55.2%.

30. Ethopabate is prepared via esterification, acylation and alkylation from p - aminosalicylic acid in 87.4 % overall yield.

31. From 1-phenyl-2-propylamine, selegiline hydrochloride, an anti-Parksins drug, was synthesized via N-methylation, enantiomer separation, N-alkylation and salt formation with an overall yield of 42.2%.

32. The overall yield of sodium copper chlorophyllin is 41.3 %.

33. Clarithromycin was prepared from erythromycin A through oximation, protection, methylation and deprotection. The overall yield of clarithromycin was 40%.