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Chemistry

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Also known as: Ftorafur, 17902-23-7, Futraful, Sinoflurol, Fental, Fluorofur
Molecular Formula
C8H9FN2O3
Molecular Weight
200.17  g/mol
InChI Key
WFWLQNSHRPWKFK-UHFFFAOYSA-N
FDA UNII
1548R74NSZ

Tegafur
Congener of FLUOROURACIL with comparable antineoplastic action. It has been suggested especially for the treatment of breast neoplasms.
1 2D Structure

Tegafur

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
5-fluoro-1-(oxolan-2-yl)pyrimidine-2,4-dione
2.1.2 InChI
InChI=1S/C8H9FN2O3/c9-5-4-11(6-2-1-3-14-6)8(13)10-7(5)12/h4,6H,1-3H2,(H,10,12,13)
2.1.3 InChI Key
WFWLQNSHRPWKFK-UHFFFAOYSA-N
2.1.4 Canonical SMILES
C1CC(OC1)N2C=C(C(=O)NC2=O)F
2.2 Other Identifiers
2.2.1 UNII
1548R74NSZ
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 1-(2-tetrahydrofuryl)-5-fluorouracil

2. 1-(tetrahydro-2-furanyl)-5-fluorouracil

3. 5-fluoro-1-(tetrahydro-2-furanyl)-2,4-pyrimidinedione

4. Florafur

5. Fluorofur

6. Ft 207

7. Ft-207

8. Ft207

9. Ftorafur

10. Futraful

11. N1-(2'-tetrahydrofuryl)-5-fluorouracil

12. Sunfural S

13. Uftoral

14. Utefos

2.3.2 Depositor-Supplied Synonyms

1. Ftorafur

2. 17902-23-7

3. Futraful

4. Sinoflurol

5. Fental

6. Fluorofur

7. Citofur

8. Neberk

9. Coparogin

10. Furafluor

11. Furofutran

12. Nitobanil

13. Exonal

14. Fulfeel

15. Lifril

16. Lamar

17. Tefsiel C

18. Florafur

19. Riol

20. 5-fluoro-1-(tetrahydrofuran-2-yl)pyrimidine-2,4(1h,3h)-dione

21. Ft-207

22. Franroze

23. Furflucil

24. Sunfral

25. 1-(2-tetrahydrofuryl)-5-fluorouracil

26. Franrose

27. Phthorafur

28. Sunfural

29. Fulaid

30. 5-fluoro-1-(tetrahydro-2-furyl)uracil

31. Mjf-12264

32. 2,4(1h,3h)-pyrimidinedione, 5-fluoro-1-(tetrahydro-2-furanyl)-

33. Atillon

34. Fluorafur

35. Nsc-148958

36. 5-fluoro-1-(tetrahydro-2-furfuryl)uracil

37. Uracil, 5-fluoro-1-(tetrahydro-2-furyl)-

38. Ft 207

39. 5-fluoro-1-(tetrahydro-2-furanyl)-2,4-pyrimidinedione

40. N1-(2-tetrahydrofuryl)-5-fluorouracil

41. 1-(tetrahydrofuran-2-yl)-5-fluorouracil

42. 5-fluoro-1-(tetrahydrofuran-2-yl)uracil

43. Uracil, 1-(tetrahydrofuran-2-yl)-5-fluoro-

44. 5-fluoro-1-(oxolan-2-yl)pyrimidine-2,4-dione

45. Nsc 148958

46. 5-fluoro-1-(tetrahydro-3-furyl)uracil

47. 1-(tetrahydro-2-furanyl)-5-fluoro-2,4-pyrimidinedione

48. Mls000069497

49. Chebi:32188

50. 1-(2-tetrahydroformyl)-5-fluorouracil

51. 1548r74nsz

52. 5-fluoro-1-tetrahydrofuran-2-yl-pyrimidine-2,4-dione

53. Ncgc00159418-02

54. Ncgc00159418-05

55. Smr000059106

56. 2,4(1h,3h)pyrimidinedione, 5-fluoro-1-(tetrahydro-2-furanyl)-

57. Racemic Ftorafur

58. Dsstox_cid_1305

59. Dsstox_rid_76070

60. Dsstox_gsid_21305

61. Phthorafur [czech]

62. Ft-207 (nsc 148958)

63. Tegafurum

64. Tegafurum [inn-latin]

65. Cas-37076-68-9

66. Ccris 2762

67. Ft207

68. Einecs 241-846-2

69. Mfcd00012351

70. Brn 0525766

71. N1-(2'-tetrahydrofuryl)-5-fluorouracil

72. 1-(tetrahydro-2-furanyl)-5-fluorouracil

73. Unii-1548r74nsz

74. N(sub 1)-(2-tetrahydrofuryl)-5-fluorouracil

75. Tegafur [usan:inn:ban:jan]

76. N(sub 1)-(2'-furanidyl)-5-fluouracil [czech]

77. Atillon (tn)

78. Tegafur ,(s)

79. N(sub 1)-(2'-furanidyl)-5-fluouracil

80. Ts-1 (salt/mix)

81. Tegafur [usan]

82. Tegafur [inn]

83. Tegafur [jan]

84. Tegafur [mi]

85. Opera_id_1726

86. Tegafur [mart.]

87. Tegafur [who-dd]

88. Upcmld-dp063

89. Schembl4552

90. Tegafur [ema Epar]

91. 5-24-06-00285 (beilstein Handbook Reference)

92. 79107-97-4

93. Mls000759414

94. Mls001076521

95. Mls001424119

96. Chembl20883

97. Tegafur (jp17/usan/inn)

98. F-5-fu

99. Teysuno Component Tegafur

100. Upcmld-dp063:001

101. Gtpl10513

102. Dtxsid001009966

103. Hms1665i05

104. Hms2051b15

105. Hms2090k04

106. Hms2232e05

107. Hms3371h21

108. Hms3393b15

109. Hms3654p13

110. Hms3715d14

111. N1-(2'-furanidyl)-5-fluouracil

112. 5-fluoro-1-(tetrahydro-2-furanyl)-2,4(1h,3h)-pyrimidinedione

113. Bcp22714

114. Tegafur Component Of Teysuno

115. 5-fluoro-1-(tetrahydrofuran-2-yl)

116. N1-(2'-furanidyl)-5-fluorouracil

117. Tox21_111649

118. Tox21_301812

119. Bbl027795

120. Ccg-50110

121. Stk528044

122. Tegafur, >=98% (hplc), Powder

123. 5-fluoro-1-(2-tetrahydrofuryl)uracil

124. Akos000121279

125. Tox21_111649_1

126. Ac-2112

127. Ccg-100959

128. Cs-1128

129. Db09256

130. Nc00209

131. 1-(tetrahydro-2-furyl)-5-fluorouracil

132. 2,4(1h,3h)-pyrimidinedione, 5-fluoro-1-(tetrahydro-2-furanyl)-, Didehydroderiv.

133. 5-fluoro-1-(2-tetrahydrofuranyl)uracil

134. 5-fluoro-1-(tetrahydro-2-furyl)-uracil

135. N1 -(2-tetrahydrofuryl)-5-fluorouracil

136. Ncgc00159418-04

137. Ncgc00255222-01

138. 82294-77-7

139. As-13528

140. Hy-17400

141. Tegafur (ft-207; Nsc 148958)

142. Ft-0653732

143. Ft-0654170

144. Ft-0674829

145. Ft-0693965

146. D01244

147. Ab00572620-15

148. 902t237

149. A812417

150. Q413370

151. Sr-01000639511

152. Q-201784

153. Sr-01000639511-1

154. Sr-01000639511-4

155. 5-fluoro-1-tetrahydro-furan-2-yl-1h-pyrimidine-2,4-dione

156. 5-fluoro-1-tetrahydro-2-furanyl-2,4(1h,3h)-pyrimidinedione

157. 2, 4(1h,3h)-pyrimidinedione, 5-fluoro-1-(tetrahydro-2-furanyl)-, (r)-

2.4 Create Date
2005-03-25
3 Chemical and Physical Properties
Molecular Weight 200.17 g/mol
Molecular Formula C8H9FN2O3
XLogP3-0.3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass200.05972032 g/mol
Monoisotopic Mass200.05972032 g/mol
Topological Polar Surface Area58.6 Ų
Heavy Atom Count14
Formal Charge0
Complexity316
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Indication

Indicated for the treatment of cancer usually in combination with other biochemically modulating drugs. Indicated in adults for the treatment of advanced gastric cancer when given in combination with [DB00515]. Indicated for the first-line treatment of metastatic colorectal cancer with [DB03419] and calcium folinate.


5 Pharmacology and Biochemistry
5.1 Pharmacology

Tegafur is an antineoplastic agent that belongs in the class of pyrimidine analogues. It interferes with the 2'-deoxythymidylate (DTMP) synthesis in the pyrimidine pathway, resulting in inhibition of DNA synthesis. In a phase III trial investigating the clinical efficacy of S-1 (tegafur/gimeracil/oteracil) in patients with advanced or recurrent gastric cancer, treatment resulted in a high response rate and was associated with a longer overall survival and longer progression-free survival rate when used in combination with cisplatin. In a meta analysis, triple combination therapy consisting of tegafur, gimeracil and oteracil showed longer survival times and well tolerance in patients with advanced gastric cancer. Tegafur and its active metabolites are potent myleosuppressive agents.


5.2 MeSH Pharmacological Classification

Antimetabolites, Antineoplastic

Antimetabolites that are useful in cancer chemotherapy. (See all compounds classified as Antimetabolites, Antineoplastic.)


5.3 ATC Code

L01BC53

S76 | LUXPHARMA | Pharmaceuticals Marketed in Luxembourg | Pharmaceuticals marketed in Luxembourg, as published by d'Gesondheetskeess (CNS, la caisse nationale de sante, www.cns.lu), mapped by name to structures using CompTox by R. Singh et al. (in prep.). List downloaded from https://cns.public.lu/en/legislations/textes-coordonnes/liste-med-comm.html. Dataset DOI:10.5281/zenodo.4587355


L - Antineoplastic and immunomodulating agents

L01 - Antineoplastic agents

L01B - Antimetabolites

L01BC - Pyrimidine analogues

L01BC03 - Tegafur


5.4 Absorption, Distribution and Excretion

Absorption

Tegafur displays a dose-proportional pharmacokinetic properties. Tegafur is rapidly and well absorbed into the systemic circulation, reaching the peak plasma concentration within 1 to 2 hours of administration.


Route of Elimination

Following oral administration, about less 20% of total tegafur is excreted unchanged in the urine.


Volume of Distribution

The volume of distribution based on apparent volume of distribution and urinary excretion data of tegafur is 16 L/m^2.


Clearance

No pharmacokinetic data available.


5.5 Metabolism/Metabolites

Hepatic CYP2A6 is the predominant enzyme that mediates 5-hydroxylation of tegafur to generate 5'-hydroxytegafur. This metabolite is unstable and undergoes spontaneous degradation to form 5-FU, which is an active antineoplastic agent that exerts a pharmacological action on tumours. 5-FU is rapidly metabolised by the liver enzyme dihydropyrimidine dehydrogenase (DPD).


Tegafur has known human metabolites that include 5-Fluorouracil.

S73 | METXBIODB | Metabolite Reaction Database from BioTransformer | DOI:10.5281/zenodo.4056560


5.6 Biological Half-Life

The elimination half life of tegafur is approximately 11 hours.


5.7 Mechanism of Action

The transformation of 2'-deoxyurindylate (dUMP) to 2'-deoxythymidylate (dTMP) is essential in driving the synthesis of DNA and purines in cells. Thymidylate synthase catalyzes the conversion of dUMP to dTMP, which is a precursor of thymidine triphosphate (TTP), one of the four deoxyribonucleotides required for DNA synthesis. After administration into the body, tegafur is converted into the active antineoplastic metabolite, fluorouracil (5-FU). In tumour cells, 5-FU undergoes phosphorylation to form the active anabolites, including 5-fluorodeoxyuridine monophosphate (FdUMP). FdUMP and reduced folate are bound to thymidylate synthase leading to formation of a ternary complex which inhibits DNA synthesis. In addition, 5-fluorouridine-triphosphate (FUTP) is incorporated into RNA causing disruption of RNA functions.


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14-May-2024
14-May-2024
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Europe

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NORDIC GROUP BV

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Tegafur

Brand Name : Teysuno

Dosage Form : Tegafur+Gimeracil Oteracil+15+4,35+11,8Mg 126 Unita' Oral Use

Dosage Strength : 126 cps 15 mg + 4.35mg + 11.8 mg

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Registration Country : Italy

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NORDIC GROUP BV

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AES 2024
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NORDIC GROUP BV

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Tegafur

Brand Name : Teysuno

Dosage Form : Tegafur+Gimeracil Oteracil+15+4,35+11,8Mg 42 Combined Oral Use

Dosage Strength : 42 cps 15 mg + 4.35mg + 11.8 mg

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Registration Country : Italy

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NORDIC GROUP BV

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AES 2024
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NORDIC GROUP BV

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Tegafur

Brand Name : Teysuno

Dosage Form : Tegafur+Gimeracil Oteracil+20+5,8+15,8Mg 42 Combined Oral Use

Dosage Strength : 42 cps 20 mg + 5.8 mg + 15.8 mg

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Approval Date :

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Registration Country : Italy

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04

NORDIC GROUP BV

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AES 2024
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NORDIC GROUP BV

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AES 2024
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Tegafur

Brand Name : Teysuno

Dosage Form : Tegafur+Gimeracil Oteracil+20+5,8+15,8Mg 84 Combined Oral Use

Dosage Strength : 84 cps 20 mg + 5.8 mg + 15.8 mg

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Registration Country : Italy

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Nordic Group BV

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AES 2024
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Nordic Group BV

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AES 2024
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Tegafur

Brand Name : Teysuno

Dosage Form : Capsule, hard

Dosage Strength : 15 mg/4.35 mg/11.8 mg

Packaging : Blister

Approval Date :

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Regulatory Info :

Registration Country : Norway

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Nordic Group BV

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AES 2024
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Nordic Group BV

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AES 2024
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Tegafur

Brand Name : Teysuno

Dosage Form : Capsule, hard

Dosage Strength : 15 mg/4.35 mg/11.8 mg

Packaging : Blister

Approval Date :

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Regulatory Info :

Registration Country : Norway

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Nordic Group BV

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Nordic Group BV

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Tegafur

Brand Name : Teysuno

Dosage Form : Capsule, hard

Dosage Strength : 20 mg/5.8 mg/15.8 mg

Packaging : Blister

Approval Date :

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Regulatory Info :

Registration Country : Norway

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Nordic Group BV

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Nordic Group BV

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Tegafur

Brand Name : Teysuno

Dosage Form : Capsule, hard

Dosage Strength : 20 mg/5.8 mg/15.8 mg

Packaging : Blister

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Registration Country : Norway

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South Africa

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Merck (Pty) Ltd

Germany
AES 2024
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Merck (Pty) Ltd

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Tegafur

Brand Name : Uft

Dosage Form : CAP

Dosage Strength : 100mg

Packaging : 36X1mg

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Regulatory Info : Originator

Registration Country : South Africa

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Listed Dossiers

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AES 2024
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Tegafur; Gimeracil-13C3; Oteracil potassium

Brand Name :

Dosage Form : Capsule

Dosage Strength : 20MG; 5.8MG; 19.6MG

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Registration Country : China

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AES 2024
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Tegafur; Gimeracil-13C3; Oteracil potassium

Dosage : Capsule

Dosage Strength : 20MG; 5.8MG; 19.6MG

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Registration Country : China

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AES 2024
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Tegafur; Gimeracil-13C3; Oteracil potassium

Brand Name :

Dosage Form : Capsule

Dosage Strength : 25MG; 7.25MG; 24.5MG

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Registration Country : China

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AES 2024
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Tegafur; Gimeracil-13C3; Oteracil potassium

Dosage : Capsule

Dosage Strength : 25MG; 7.25MG; 24.5MG

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Registration Country : China

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AES 2024
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Tegafur; Uracil

Brand Name :

Dosage Form : Capsules

Dosage Strength : 100; 224

Packaging : 1 x 14’s Blister (Alu-PVC)

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Registration Country : India

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AES 2024
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Tegafur; Uracil

Dosage : Capsules

Dosage Strength : 100; 224

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Registration Country : India

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