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 4):
A method for preparing the composition enriched in compound 61501b, comprising:\n reacting a compound (61501h) with a compound (61501g) under alkaline conditions, and then reacting with a compound (61501f) to obtain a compound 61502: and\n obtaining the composition enriched in compound 61501b by isomer separation of the compound 61502:

Metadata:
- Claim Count in Document: 44.0
- Percentile: 88.0
- Lexical Diversity: 1.98214
- Patent Class: 536.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15754009', '15577622', '14126898', '15772942', '14376481']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6056159442338422
- 35 USC 102 Novelty (BERT): 0.5198702918998725
- Combined Prediction Score: 0.5970413790004453
- Mean Citation Score: 239.237012
- Max Citation Score: 328.0724
- Similarity Product: 254.3813300854206

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