PATENT CLAIM ANALYSIS

Application Number: 16087318
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-01
Patent Classification: ["514", "260100"]

Abstract:
The invention relates to a salt form of (R)-methyl-2-(3-aminopiperidin-1-yl)-3-(2-cyanobenzyl)-4-carbonyl-3,4-dihydrothiophene[3,2-d]pyrimidine-6-carboxylic acid and a preparation method for the salt form. Also disclosed is a pharmaceutical composition of the formula I compound salt form. The salt form of the invention provides powerful in vivo hypoglycemic activity and is expected to be a novel pharmaceutical active ingredient for treating or preventing diabetes mellitus type 2 and/or complications of diabetes mellitus type 2

Claim (Index 7):
A method for preparing a salt form of a compound of formula I according to  claim 1 , characterized in that the method comprises the following steps of:\n (1) a free base of the compound of formula I is dissolved in a solvent and a certain amount of acid is added; (2) the solution obtained in step (1) is allowed to stand for a certain period of time to carry out a reaction at a certain temperature, and crystals are crystallized under stirring to obtain solids; (3) the solids obtained in step (2) are filtered and/or dried to obtain the salt form according to  claim 1 .

Metadata:
- Claim Count in Document: 20.0
- Percentile: 97.0
- Lexical Diversity: 1.54545
- Patent Class: 514.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16087317', '16316055', '13522549', '14698463', '15746966']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7491485367210845
- 35 USC 102 Novelty (BERT): 0.5257547161667551
- Combined Prediction Score: 0.7268091546656515
- Mean Citation Score: 261.05123
- Max Citation Score: 316.59814
- Similarity Product: 247.1057146624816

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

Dataset: test