Phosphoramidate compound and preparation method and crystal thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10913756
APP PUB NO 20200190125A1
SERIAL NO

16706315

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present disclosure involves a composition enriched in compound 61501b, wherein the compound 61501b has a purity of not less than 90% or more. The composition has a significant advantage in preparing a high-purity compound Sp-1. In addition, the present disclosure also provides a preparation method of the composition enriched in compound 61501b. The method adopts a crystallization technique to perform separation and purification, has a simple and convenient operation and good reproducibility, and therefore the compound 61501b in the prepared composition has high purity and quality. Further, the present disclosure also involves a novel crystal form of compound 61501b.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BRIGHTGENE BIO-MEDICAL TECHNOLOGY CO LTDBUILDING C25 NANOTECHNOLOGY PARK 218 XINGHU STREET SUZHOU INDUSTRIAL PARK JIANGSU PROVINCE SUZHOU CITY JIANGSU PROVINCE 215123

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gu, Jianing Suzhou, CN 6 20
Huang, Yangqing Suzhou, CN 12 38
Liang, Chaohua Suzhou, CN 4 20
Miao, Linfeng Suzhou, CN 3 9
Sun, Zhanli Suzhou, CN 8 20
Wang, Zhengye Suzhou, CN 4 20
Yuan, Jiandong Suzhou, CN 21 31

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 Aug 9, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 9, 2032
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