Cyclic phosphinate derivatives and method of preparing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9670240
APP PUB NO 20170022229A1
SERIAL NO

15286408

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Provided are novel cyclic phosphinate derivatives and a method of preparing the same, and more particularly, cyclic phosphinate derivatives including benzoxaphosphole oxide derivatives and benzoxaphosphorin oxide derivatives, and a method of preparing the same. The cyclic phosphinate derivative according to the present invention may have pharmacological and physiological activities, be used as the basic skeleton of the natural material, and be used in development of a new drug, and synthesis of various medicines. In addition, with the method of preparing a cyclic phosphinate derivative according to the present invention, various cyclic phosphinate derivatives may be prepared with high yield through a simple synthetic process by performing an intramolecular carbon-oxygen coupling reaction on the phosphinic acid derivative in the presence of a palladium (Pd) catalyst, an oxidant, and a base.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
KNU-INDUSTRY COOPERATION FOUNDATION(HYOJA-DONG) 1 KANGWONDAEHAK-GIL CHUNCHEON-SI GANGWONDO 24341

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Won Seok Chuncheon-si, KR 69 543
Eom, Da Han Chuncheon-si, KR 2 0
Jeong, Yeon Seok Chuncheon-si, KR 16 92
Kang, Dong Jin Chuncheon-si, KR 5 9
Kim, Yea Rin Chuncheon-si, KR 2 0
Lee, Phil Ho Chuncheon-si, KR 9 0
Shin, Seo Hyun Chuncheon-si, KR 2 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 6, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 6, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00