Ergostine

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| ImageFile = Ergostine.svg

| ImageSize = 150px

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| IUPACName = 5′α-Benzyl-2′β-ethyl-12′-hydroxyergotaman-3′,6′,18-trione

| SystematicName = (6aR,9R)-N-[(2R,5S,10aS,10bS)-5-Benzyl-2-ethyl-10b-hydroxy-3,6-dioxooctahydro-8H-[1,3]oxazolo[3,2-a]pyrrolo[2,1-c]pyrazin-2-yl]-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide

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|Section1={{Chembox Identifiers

| CASNo = 2854-38-8

| CASNo_Ref = {{Cascite|changed|CAS}}

| PubChem = 12308959

| ChemSpiderID = 19988989

| UNII = 8RM45QOC5P

| SMILES = CC[C@@]1(C(=O)N2[C@H](C(=O)N3CCC[C@H]3[C@@]2(O1)O)Cc4ccccc4)NC(=O)[C@H]5CN([C@@H]6Cc7c[nH]c8c7c(ccc8)C6=C5)C

| StdInChI = 1S/C34H37N5O5/c1-3-33(36-30(40)22-16-24-23-11-7-12-25-29(23)21(18-35-25)17-26(24)37(2)19-22)32(42)39-27(15-20-9-5-4-6-10-20)31(41)38-14-8-13-28(38)34(39,43)44-33/h4-7,9-12,16,18,22,26-28,35,43H,3,8,13-15,17,19H2,1-2H3,(H,36,40)/t22-,26-,27+,28+,33-,34+/m1/s1

| StdInChIKey = BOLCFGMGGWCOOE-CTTKVJGISA-N}}

|Section2={{Chembox Properties

| C=34 | H=37 | N=5 | O=5

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|Section3={{Chembox Hazards

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Ergostine is an ergoloid-like chemical compound produced by the fungus Claviceps purpurea.{{cite journal|last1=Crespi-Perellino|first1=N|last2=Guicciardi|first2=A|last3=Minghetti|first3=A|last4=Spalla|first4=C|title=Incorporation of alpha-aminobutyric acid into ergostine by Claviceps purpurea.|journal=Experientia|date=15 March 1981|volume=37|issue=3|pages=217–8|pmid=7238767|doi=10.1007/bf01991617|s2cid=5970415}}