Disaccharide intermediate and synthesis method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10287309
APP PUB NO 20160264609A1
SERIAL NO

15036390

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a disaccharide intermediate and a synthesis method thereof, relates to the chemical pharmaceutical field, and more specifically relates to a method for preparing a disaccharide segment of a key intermediate for chemically synthesizing heparin and heparinoid compounds. Disclosed are a new disaccharide intermediate and three methods for synthesizing the disaccharide intermediate, that is, compounds of a formula (4) and glucopyranose protected by different anomeric carbon are made to react in the presence of an active agent, to obtain the disaccharide intermediate. According to the technical solutions of the present invention, synthetic raw materials are easy to obtain, have a mild reaction condition, and are suitable for industrialized production.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ZHEJIANG HISUN PHARMACEUTICAL CO LTDJIAOJIANG DISTRICT OF TAIZHOU CITY ZHEJIANG PROVINCE 318000 ROAD OUTSIDE NO 46 TAIZHOU CITY ZHEJIANG PROVINCE 318000

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Hua Zhejiang, CN 113 414
Cai, Qingfeng Zhejiang, CN 5 10
Guo, Yanghui Zhejiang, CN 10 0
Long, Fei Zhejiang, CN 58 312
Wei, Hegeng Zhejiang, CN 4 0
Wu, Yingqiu Zhejiang, CN 5 0
Zhang, Yue Zhejiang, CN 291 1641
Zhou, Junhui Zhejiang, CN 4 6

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 Nov 14, 2026
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 14, 2030
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