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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1626575Generated: October 31, 2026

Formaldehyde → (S)-4-(2-chloro-7-methyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)-3-methylmorpholine

https://huagongshe.com/reaction/1626575

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant(S)-4-(2-chloro-6-(cyclopropylmethyl)-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidin-4-yl)-3-methylmorpholineHCID 86663153—
Reactant(S)-4-(2-chloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)-3-methylmorpholine hydrochlorideHCID 86663157—
Product(S)-4-(2-chloro-7-methyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)-3-methylmorpholineHCID 8666315678%

Reaction Steps

Method as described for intermediate 8 using formaldehyde (37% solution in water) and (S)-4-(2-chloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)-3-methylmorpholine hydrochloride as starting materials. The mixture was partitioned between saturated NaHCO3 solution and DCM. The organic layer was recovered, dried over MgSO4, filtered and reduced in vacuo, yielding the title compound (2.11 g, 7.47 mmol, 78%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785457B2
Source datasetuspto-grants-2014_07
ORD IDord-4ddc060b4eca455c9fc74846fd6ef09b
Source noteuspto-grants-2014_07