Momordicin-28 or 13-hydroxy-28-methoxy-urs-11-en-3-one is a triterpene compound with formula C
31
H
50
O
3
found in the fresh fruit of the bitter melon (Momordica charantia).[1]

Momordicin-28
Names
IUPAC name
13-Hydroxy-28-methoxyurs-11-en-3-one
Systematic IUPAC name
(4aR,6aR,6bS,8aS,11R,12S,12aR,12bS,14aR,14bS)-12b-Hydroxy-8a-(methoxymethyl)-4,4,6a,6b,11,12,14b-heptamethyl-1,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,14a,14b-octadecahydropicen-3(2H)-one
Other names
13-Hydroxy-28-methoxy-urs-11-en-3-one
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/C31H50O3/c1-20-9-15-30(19-34-8)18-17-29(7)28(6)14-10-22-26(3,4)24(32)12-13-27(22,5)23(28)11-16-31(29,33)25(30)21(20)2/h11,16,20-23,25,33H,9-10,12-15,17-19H2,1-8H3/t20-,21+,22+,23-,25-,27+,28-,29+,30-,31+/m1/s1
    Key: SQYPHCMLIZHTPW-LWIDLGQCSA-N
  • C[C@H]1[C@H](C)CC[C@]2(COC)CC[C@@]3(C)[C@]4(C)CC[C@@]5([H])C(C)(C)C(CC[C@]5(C)[C@@]4([H])C=C[C@]3(O)[C@@]21[H])=O
Properties
C31H50O3
Molar mass 470.738 g·mol−1
Melting point 121 to 122 °C (250 to 252 °F; 394 to 395 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The compound is soluble in ethyl acetate and chloroform but not in petrol. It crystallizes as fine needles that melt at 121−122 °C. It was isolated in 1997 by S. Begum and others.[1]

See also

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References

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  1. ^ a b Sabira Begum, Mansour Ahmed, Bina S. Siddiqui, Abdullah Khan, Zafar S. Saify, and Mohammed Arif (1997), Triterpenes, a sterol and a monocyclic alcohol from Momordica charantia. Phytochemistry, volume 44, issue 7, pages 1313-1320