Preocoteine

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Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Isoquinoline Alkaloids – Aporphine Alkaloids

Biological sources: Thalictrum strictum

C21H25NO5: 371.1733

Mp: oil [1]

[α]D +26° (EtOH) [2]

UV: 280, 305, 315 [1]

MSm/z: 371(M+), 370, 356, 340, 328 [1]

MSm/z: 371(100), 370(73), 356(52), 354(23), 340(26), 328(25), 313(13), 311(5), 297(21), 178(5) [2]

1H NMR: 2.49(3H, s, NCH3), 3.80, 3.85, 3.89(12H, s, 4 × OCH3), 6.76(1H, s, H-8), 7.91(1H, s, H-11) [1]

13 C NMR: [ 2]

Table 1

C-1

138.3

C-5

53.2

C-11

110.9

1a

148.5

6a

62.8

11a

124.6

1b

125.2

7

34.3

NCH3

44.0

2

144.3

7a

130.5

2-OCH3

60.0

3

147.3

8

111.6

3-OCH3

60.8

3a

115.7

9

147.1

9-OCH3

56.0

4

23.4

 10

147.1

10-OCH3

56.0

References

  1. 1.
    S.Kh. Maekh, P.G. Gorovoi, S.Yu. Yunusov, Chem. Nat. Comp. 12, 507 (1976)Google Scholar
  2. 2.
    F.R. Stermitz, O. Castro, J. Nat. Prod. 46, 913 (1983)Google Scholar

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© Springer Science+Business Media New York 2013

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