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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885431Generated: November 3, 2026

Acetonitrile → 17-Ethyl-1-hydroxy-12-[2'-(4"-fluoro-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo-[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

https://huagongshe.com/reaction/1885431

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
Reactant(Diethylamino)sulfur trifluorideHCID 123472—
Reactant17-Ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-methoxycyclo-hexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]-octacos-18-ene-2,3,10,16-tetraoneHCID 57262833—
SolventTetrahydrofuranHCID 8028—
Product17-Ethyl-1-hydroxy-12-[2'-(4"-fluoro-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo-[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraoneHCID 57161264—

Reaction Steps

Treatment of 17-ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone with diethylaminosulfur trifluoride (DAST) in THF followed by 48% aqueous HF/acetonitrile as in Example 64 yields 17-ethyl-1-hydroxy-12-[2'-(4"-fluoro-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo-[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05143918
Source datasetuspto-grants-1992_09
ORD IDord-872301fbfd4b4280912fd874656edae9
Source noteuspto-grants-1992_09