PATENT CLAIM ANALYSIS

Application Number: 15754318
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["536", "026800"]

Abstract:
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.

Claim (Index 8):
The method according to  claim 7 , wherein the organic solvent is selected from ethyl acetate, tert-butyl methyl ether, isopropanol or tetrahydrofuran.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 88.0
- Lexical Diversity: 1.98214
- Patent Class: 536.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15754009', '15577622', '14126898', '15772942', '14376481']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6335926272460715
- 35 USC 102 Novelty (BERT): 0.5231543956840634
- Combined Prediction Score: 0.6225488040898707
- Mean Citation Score: 239.237012
- Max Citation Score: 328.0724
- Similarity Product: 244.8229639454604

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test