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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1897930Generated: October 30, 2026

Acetic Acid → (2R,4S,5S)-2-benzhydryl-5-[(1H-indol-5-ylmethyl)-amino]-tetrahydro-pyran-4-ol

https://huagongshe.com/reaction/1897930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantIndole-5-carboxaldehydeHCID 589040—
Reactant(2R,4S,5S)-5-amino-2-benzhydryl-tetrahydropyran-4-olHCID 11594377—
Reactant(2S)-2-benzhydryl-3,6-dihydro-2H-pyranHCID 54762285—
SolventAcetoneHCID 180—
Product(2R,4S,5S)-2-benzhydryl-5-[(1H-indol-5-ylmethyl)-amino]-tetrahydro-pyran-4-olHCID 11618477—

Reaction Steps

(2R,4S,5S)-5-amino-2-benzhydryl-tetrahydropyran-4-ol 31b (0.05 g, 0.18 mmol) was reacted with 1H-indol-5-carbaldehyde (0.03 g, 0.18 mmol), glacial acetic acid (0.01 g, 0.18 mmol) and NaCNBH3 (0.02 g, 0.35 mmol) (Procedure C) to give (2R,4S,5S)-2-benzhydryl-5-[(1H-indol-5-ylmethyl)-amino]-tetrahydropyran-4-ol, (+)32b, 0.05 g (69%, [α]D=(+) 70.9, c=1, Acetone).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519159B2
Source datasetuspto-grants-2013_08
ORD IDord-c753c7d2bdfc45e0befb1221cd8660a4
Source noteuspto-grants-2013_08