Handbook of Herbs and Spices - Volume 3

456 Handbook of herbs and spices

Fig. 27.1 Structures of alkaloids found in leaves of P. amaryllifolius.

CH 3

O

N

O

CH 3

OCH 3

O

CH 3

O

CH 2

N

O

O

CH 3

O

N

O

O

2

4

6

Pandamarilactone-31 (4) Pandamarilactone-32 (5) Pandamarilactam-x, –y (6, 7)

CH 3

N

O

O

HH

CH 3

O

H

O

N O O

H CH 3

CH 3

NH

CH 3

O

H

O

O

O

Pandamarilactonine-A (8) Pandamarilactonine-B (9)

Norpandamarilactonine-A, B

(10, 11)

CH 3

O

CH 3

HN

O

O

O

4

6

2

CH 3

O

H

N O

CH 3

H O

O

CH 3

O

N

H

CH 3

O

H

O

O

6 E-Pandanamine (14) Pandamarilactonine-C (12) Pandamarilactonine-D (13)

6 Z-Pandanamine (15)

N C

O

CH 3

CH 3

N

O

CH 3

H

N

N

H

O

N CH 3

O O

O

O

CH 3

2-Acetyl-1-pyrroline (1) (±) Pandamarine (2) Pandamarilactone-1 (3)

compound was isolated as a crystal and its structure was determined by X-ray diffraction

(Byrne et al., 1992). Three more piperidine alkaloids, pandamarilactone-1( 3 ),

pandamarilactone-31( 4 ) and pandamarilactone-32 ( 5 ), were isolated later on (Nonato