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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 597089Generated: October 25, 2026

1,1'-Carbonyldiimidazole → 3-phthalimidobutyric acid 2-[7-chloro-5-(o-fluorophenyl)-3H-1,4-benzodiazepin-2yl]hydrazide

https://huagongshe.com/reaction/597089

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant7-chloro-2-hydrazino-5-(o-fluorophenyl)-3H-1,4-benzodiazepineHCID 12390887—
Reactant3-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)butanoic acidHCID 12612390—
SolventTetrahydrofuranHCID 8028—
Product3-phthalimidobutyric acid 2-[7-chloro-5-(o-fluorophenyl)-3H-1,4-benzodiazepin-2yl]hydrazideHCID 54408602—

Reaction Steps

In the manner given in Example 20, 3-phthalimidobutyric acid and carbonyldiimidazol are reacted in tetrahydrofuran. To this mixture is added 7-chloro-2-hydrazino-5-(o-fluorophenyl)-3H-1,4-benzodiazepine to give 3-phthalimidobutyric acid 2-[7-chloro-5-(o-fluorophenyl)-3H-1,4-benzodiazepin-2yl]hydrazide which is warmed with acetic acid to give N-[2-[8-chloro-6-(o-fluorophenyl)-4H-s-triazolo-[4,3-a][1,4]benzodiazepin-1-yl]propyl]phthalimide

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04012413
Source datasetuspto-grants-1977_03
ORD IDord-d45c31ec60584e63ac2bee3614138e81
Source noteuspto-grants-1977_03