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Laudanosine

Reference work entry

CAS Registry Number: 2688-77-9 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Benzylisoquinoline Alkaloids

Biological sources: Berberis heteropoda

C21H27NO4: 357.1940

Mp: 86–87°C (Me2CO), 220°C (methiodide) [1]

[α]D +48° (CHCl3) [1]

UV: 282(3.82) [1]

IR: 2830, 2780, 1610, 1580, 1520, 1270, 1240 [1]

13 C NMR: [ 2]

Table 1

C-1

65.5

C-8

110.7

C-5′

110.7

3

46.8

8a

132.2

6′

121.5

4

25.3

α

40.4

6-OCH3

55.5

4a

125.8

1′

129.0

7-OCH3

55.5

5

112.8

2′

110.7

3′-OCH3

55.3

6

146.9

3′

148.3

4′-OCH3

55.3

7

146.9

4′

146.0

NCH3

42.4

References

  1. 1.
    Z.F. Ismailov, S.Yu. Yunusov, Chem. Nat. Comp. 2, 35 (1966)Google Scholar
  2. 2.
    M. Shamma, D.M. Hindenlang, Carbon −13 NMR Shift Assignment of Amines and Alkaloids (Plenum Press, New York/London, 1979). No. 320Google Scholar
  3. 3.
    I. Ramzan, J. Chromatogr. 565, 465 (1991)Google Scholar
  4. 4.
    R.H.F. Manske (ed.), The Alkaloids, Chemistry and Physiology, vol. 15 (Academic Press, New York, 1975), p. 207Google Scholar

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