3-Hydroxy-16-methoxy-2,3-dihydrotabersonine

3-Hydroxy-16-methoxy-2,3-dihydrotabersonine
Names
	IUPAC name Methyl (2β,3β,5α,12β,19α)-3-hydroxy-16-methoxy-6,7-didehydroaspidospermidine-3-carboxylate
Identifiers
3D model (JSmol)	Interactive image;
ChemSpider	389344;
PubChem CID	440391;
	InChI InChI=1S/C22H28N2O4/c1-4-20-8-5-10-24-11-9-21(18(20)24)15-7-6-14(27-2)12-16(15)23-17(21)22(26,13-20)19(25)28-3/h5-8,12,17-18,23,26H,4,9-11,13H2,1-3H3/t17-,18+,20+,21+,22-/m1/s1 Key: MLIQIRKAHMVCDD-MMGCJVFTSA-N; InChI=1/C22H28N2O4/c1-4-20-8-5-10-24-11-9-21(18(20)24)15-7-6-14(27-2)12-16(15)23-17(21)22(26,13-20)19(25)28-3/h5-8,12,17-18,23,26H,4,9-11,13H2,1-3H3/t17-,18+,20+,21+,22-/m1/s1 Key: MLIQIRKAHMVCDD-MMGCJVFTBW;
	SMILES CC[C@]12C[C@@]([C@H]3[C@@]4([C@H]1N(CC4)CC=C2)c5ccc(cc5N3)OC)(C(=O)OC)O;
Properties
Chemical formula	C22H28N2O4
Molar mass	384.48 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

3-Hydroxy-16-methoxy-2,3-dihydrotabersonine is a terpene indole alkaloid produced by Catharanthus roseus. The metabolite is a substrate for 3-hydroxy-16-methoxy-2,3-dihydrotabersonine N-methyltransferase (NMT) which transfers a methyl group to the nitrogen of the indole ring forming desacetoxyvindoline.^[1] The enzyme catalyzing the formation of 3-hydroxy-16-methoxy-2,3-dihydrotabersonine from 16-methoxytabersonine is currently unknown, but is a result of hydration of the double bond connecting the 6 and 13 position carbons.^[2] ^[3]

References

↑ Dethier and De Luca (1993) Partial purification of an N-methyltransferase involved in vindoline biosynthesis in Catharanthus roseus. Phytochemistry. 32(3). 673-678
↑ Liscombe, Usera and O’connor (2010) Homolog of tocopherol C methyltransferases catalyzes N methylation in anticancer alkaloid biosynthesis. Proceedings of the National Academy of Sciences. 107(44). 18793-18798
↑ O'connor and Maresh (2006) Chemistry and biology of monoterpene indole alkaloid biosynthesis. Natural Product Reports. 23(4). 532-547

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