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Tetrahedron Letters

Volumn 14, Issue 10, 1973, Pages 741-744

The structures of wilfordine and a new alkaloid alatamine, obtained from Euonymus alatus forma striatus (thunb.) Makino.

(3) Shizuri, Yoshikazu a Yamada, Kiyoyuki a Hirata, Yoshimasa a

a NAGOYA UNIVERSITY (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 2042492838 PISSN: 00404039 EISSN: None Source Type: Journal
DOI: 10.1016/S0040-4039(01)95699-0 Document Type: Article

Times cited : (18)

References (17)

1
- 0000676032
- (1970) J. Amer. Chem. Soc. , vol.92 , pp. 6667
- Kupchan¹ Smith² Bryan³

2
- 0010339873
- (1971) Tetrahedron Letters , pp. 2655
- Wada¹ Shizuri² Yamada³ Hirata⁴

3
- 49649152148
- (1971) Tetrahedron Letters , pp. 2659
- Shizuri¹ Wada² Sugiura³ Yamada⁴ Hirata⁵

4
- 0343172715
- (1971) Tetrahedron Letters , pp. 3131
- Wada¹ Shizuri² Sugiura³ Yamada⁴ Hirata⁵

5
- 0001987612
- (1971) Tetrahedron Letters , pp. 2733
- Sugiura¹ Shizuri² Wada³ Yamada⁴ Hirata⁵

6
- 84918761819
- K. Sugiura, K. Yamada, and Y. Hirata, Tetrahedron Letters, in the press.

7
- 0010291833
- (1971) Monatsh. Chem. , vol.102 , pp. 1873
- Pailer¹ Streicher² Leitich³

8
- 84918726221
- The identity of our alkaloid with wilfordine was proved by mixed melting points and spectral comparison (solution IR and mass). We express our sincere thanks to Dr. M. Beroza (USDA, Beltsville, Maryland, U. S. A.) for providing us with wilfordine.

9
- 84918752978
- Elemental analysis for this compound was in accord with theory.

10
- 0038098725
- (1950) J. Amer. Chem. Soc. , vol.72 , pp. 1608
- Acree¹ Haller²

11
- 0000954038
- (1951) J. Am. Chem. Soc. , vol.73 , pp. 3656
- Beroza¹

12
- 0006438324
- (1953) J. Am. Chem. Soc. , vol.75 , pp. 44
- Beroza¹

13
- 33947484903
- Alkaloids from Tripterygium wilfordii Hook. The Chemical Structure of Wilfordic and Hydroxywilfordic Acids
- (1963) The Journal of Organic Chemistry , vol.28 , pp. 3562
- Beroza¹

14
- 84918728428
- Elemental composition of this compound was verified by high-resolution mass spectral determination on the molecular ion.

15
- 84918753578
- 2O/Py).

16
- 84918726890
- Signals due to four acetate methyls appeared as follows: δ 1.95, 2.10, 2.13, 2.24 in alatamine 6; δ 1.52, 2.05, 2.20, 2.26 in 2; δ 1.90, 2.10, 2.10, 2.25 in 3; δ 1.92, 2.06, 2.25, 2.25 in 4.

17
- 84918713649
- + peak in the mass spectrum was deduced by the NMR spectral analysis and by considering the molecular formulas of 11 and 18 .

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