PATENT CLAIM ANALYSIS

Application Number: 16373971
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["544", "268000"]

Abstract:
The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.

Claim (Index 1):
A method of preparing polymorph D of the compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine, characterized in that it melts at 150\u00b13\u00b0 C., wherein polymorph D is obtained by heating polymorph C of the compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine to a temperature of 30-100\u00b0 C. or by drying at this temperature, wherein Polymorph C is characterized in that it loses water at a temperature of 30-100\u00b0 C. and exhibits further thermal effects at a temperature of about 150\u00b0 C. and about 175\u00b0 C. in a differential scanning calorimetry (DSC) analysis.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 100.0
- Lexical Diversity: 1.14286
- Patent Class: 544.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15725426', '15285871', '14462654', '14994578', '14273753']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6929296689910825
- 35 USC 102 Novelty (BERT): 0.4906673545976308
- Combined Prediction Score: 0.6727034375517373
- Mean Citation Score: 234.322804
- Max Citation Score: 269.80646
- Similarity Product: 263.9696164587033

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