HCl) was synthesized through a straightforward six-step sequence from the readily available [ 14 C-carbonyl]methyl salicylate (2). The overall radiochemical yield of the 1 . 2 HCl from 2 was 10.5%, and its radiochemical purity was 98.8%.
Synthesis of 2-amino-3,5-dihydro-7-(3-thienylmethyl)-[6-14C]-4H-pyrrolo[3,2-d]pyrimidin-4-one monohydrochloride ([14C]CI-1000)
✍ Scribed by James L. Hicks
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- French
- Weight
- 290 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
2‐Amino‐3,5‐dihydro‐7‐(3‐thienylmethyl)‐[6‐^14^C]‐4H‐pyrrolo [3,2‐d]pyrimidin‐4‐one monohydrochloride ([^14^C]Cl‐1000), a potent purine nucleoside phosphorylase inhibitor, was made in six steps from potassium [^14^C]cyanide. A key step was the reduction of a nitro and a nitrile group with sodium hypophosphite and RaNi followed by cyclization of the resulting intermediate to form a pyrrolo[3,2‐d] pyrimidinone.
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