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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1648437Generated: October 30, 2026

Methylamine → HCID 67766590, compound

https://huagongshe.com/reaction/1648437

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantHCID 86745915HCID 86745915—
SolventMethanolHCID 887—
ProductHCID 67766590HCID 67766590—

Reaction Steps

To obtain the corresponding 4-methylamino compound, a suspension of (20S)-4-chloro-21-hydroxy-20-methylpregn-4-en-3-one acetate in methanol was mixed with 40% aqueous methylamine and refluxed for 30 minutes. Additional 40% aqueous methylamine was added and refluxing was continued for another 30 minutes. The solvent was then evaporated and the residue was purified as described above for the 4-amino compound to give (20S)-4-(methylamino)-21-hydroxy-20-methylpregn-4-en-3-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05436237
Source datasetuspto-grants-1995_07
ORD IDord-e1dd3133222c4ff088c8e4c8906e8353
Source noteuspto-grants-1995_07