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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1844943Generated: October 31, 2026

Isoquinoline-3-carboxylic acid → 2,3-Diaminobenzoic acid methyl ester

https://huagongshe.com/reaction/1844943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsoquinoline-3-carboxylic acidHCID 124656—
ReactantMethyl 2-amino-3-nitrobenzoateHCID 607264—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Product2,3-Diaminobenzoic acid methyl esterHCID 571825—
Product2-Amino-3-[(isoquinoline-3-carbonyl)-amino]-benzoic acid methyl esterHCID 66940314—

Reaction Steps

The 2,3-diamino-benzoic acid methyl ester was synthesized from 2-amino-3-nitro-benzoic acid methyl ester (2.0 g, 10.2 mmol) as described in general procedure C. 1.7 g (10.2 mmol) of the above synthesized diamine was reacted with 1.7 g (10.0 mmol) of isoquinoline-3-carboxylic acid and 4.6 g (12.0 mmol) of HBTU as described in general procedure A to provide 2-amino-3-[(isoquinoline-3-carbonyl)-amino]-benzoic acid methyl ester. LCMS: 322 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946259B2
Source datasetuspto-grants-2015_02
ORD IDord-c8f283f1b66446b38efbc59bf7da5dfe
Source noteuspto-grants-2015_02