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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1025571Generated: October 31, 2026

5-[2-acetoxymethyl-3-(6-tert-butyl-1-oxo-1H-phthalazin-2-yl)-phenyl]-1-methyl-1H-pyrrole-2-carboxylic acid methyl ester → 5-[3-(6-tert-butyl-1-oxo-1H-phthalazin-2-yl)-2-hydroxymethyl-phenyl]-1-methyl-1H-pyrrole-2-carboxylic acid methyl ester

https://huagongshe.com/reaction/1025571

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-[2-acetoxymethyl-3-(6-tert-butyl-1-oxo-1H-phthalazin-2-yl)-phenyl]-1-methyl-1H-pyrrole-2-carboxylic acid methyl esterHCID 71008124—
SolventAmmonia methanolHCID 21705897—
Product5-[3-(6-tert-butyl-1-oxo-1H-phthalazin-2-yl)-2-hydroxymethyl-phenyl]-1-methyl-1H-pyrrole-2-carboxylic acid methyl esterHCID 7100858969.3%

Reaction Steps

A mixture of 5-[2-acetoxymethyl-3-(6-tert-butyl-1-oxo-1H-phthalazin-2-yl)-phenyl]-1-methyl-1H-pyrrole-2-carboxylic acid methyl ester (237 mg, 0.486 mmol) in saturated NH3/MeOH (20 mL) was stirred at room temperature for 48 h. The mixture was evaporated to dryness to give 5-[3-(6-tert-butyl-1-oxo-1H-phthalazin-2-yl)-2-hydroxymethyl-phenyl]-1-methyl-1H-pyrrole-2-carboxylic acid methyl ester (150 mg, yield 68%) as a yellow solid. LC-MS calcd for C26H27N3O4 (m/e) 445.20, obsd 913 [2M+Na]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08729078B2
Source datasetuspto-grants-2014_05
ORD IDord-0bb211599c494378aef0018085d7cabb
Source noteuspto-grants-2014_05