Title: Heliosupine
CAS Registry Number: 32728-78-2
CAS Name: 2-Methyl-2-butenoic acid 7-[[2,3-dihydroxy-2-(1-hydroxyethyl)-3-methyl-1-oxobutoxy]methyl]-2,3,5,7a-tetrahydro-1H-pyrrolizin-1-yl ester
Additional Names: cynoglossophine
Molecular Formula: C20H31NO7
Molecular Weight: 397.46
Percent Composition: C 60.44%, H 7.86%, N 3.52%, O 28.18%
Literature References: Hepatotoxic pyrrolizidine alkaloid isolated from Heliotropium supinum L., Boraginaceae: Denisova et al., Dokl. Akad. Nauk SSSR 93, 59 (1953); from Cynoglossum officinale L., Boraginaceae: Man'ko, Borisyuk, Ukr. Khim. Zh. 23, 362 (1957), C.A. 52, 2188a (1958); Man'ko, Marchenko, Khim. Prir. Soedin. 7, 537 (1971), C.A. 75, 126598t (1971). Identity with cynoglossophine: Man'ko, Ukr. Khim. Zh. 25, 627 (1959), C.A. 54, 12494d (1960). Structure: Crowley, Culvenor, Aust. J. Chem. 12, 694 (1959). Biosynthesis studies: Crout, J. Chem. Soc. C 1967, 1233. Reviews: see Lasiocarpine.
Properties: Colorless gum. [a]D20 -4.3° (c = 5.1 in ethanol).
Optical Rotation: [a]D20 -4.3° (c = 5.1 in ethanol)
Derivative Type: Methyl ether see Lasiocarpine
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