Process for preparing pyrimidinyl bipyridine compound and intermediate therefor

{
  "publication_number": "US2026103451A1",
  "country": "US",
  "kind": "A1",
  "title": "Process for preparing pyrimidinyl bipyridine compound and intermediate therefor",
  "abstract": "Provided are a process for preparing a pyrimidinyl bipyridine compound having high purity with high yields without using high-cost silica gels, and an intermediate used therein.",
  "claims": [
    "1. A compound of the following formula (4): wherein, R 1 is halogen, R 2 is hydrogen or a C 1 -C 6 alkyl group, and R 3 is a C 1 -C 8 alkyl group. 2. A compound of the following formula (5): wherein, R 1 is halogen, R 2 is hydrogen or a C 1 -C 6 alkyl group, and R 3 is a C 1 -C 8 alkyl group. 3. The compound according to claim 1, wherein R 1 is fluorine, R 2 is methyl group, and R 3 is i-propyl group. 4. The compound according to claim 2, wherein R 1 is fluorine, R 2 is methyl group, and R 3 is i-propyl group."
  ],
  "cpc": [
    "C07D 401/14"
  ],
  "filing_date": "2025-06-20",
  "publication_date": "2026-04-16",
  "priority_date": "2019-09-06",
  "application_number": "US-202519245013-A"
}