PATENT CLAIM ANALYSIS

Application Number: 16089486
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["544", "284000"]

Abstract:
This disclosure provides a process for preparing 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones, specially provides a method for preparing the compound of Formula I, and the method comprises the step of reacting the compound of Formula II with the compound of Formula A in the presence of a condensation agent, an organic base and an organic solvent by condensation.

Claim (Index 25):
The method of  claim 24 , wherein the method comprises one or more of the following features:\n the solvent is an alcoholic solvent and/or water; the solvent is an alcoholic solvent, wherein the amount of the alcoholic solvent is 0.8\u02dc1.3 times volume, of the compound of Formula III; the inorganic base is an aqueous solution of KOH and/or NaOH for 1 mol of the compound of Formula III, 1.5\u02dc2.0 mol of the inorganic base is used; a mixture of the compound of Formula III, an organic solvent and an aqueous inorganic base solution is stirred at 40\u02dc50\u00b0 C. for 16\u02dc30 hours, allowing for a hydrolysis reaction; and after the hydrolysis reaction is finished, the reaction liquid is cooled to 10\u02dc25\u00b0 C., to which water is added, and an inorganic acid is added dropwise to adjust the pH value of the reaction liquid to 2\u02dc3; the mixture is stirred for 1\u02dc2 hours, and then filtered to provide the compound of Formula II.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 97.0
- Lexical Diversity: 1.69231
- Patent Class: 544.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16070658', '15181348', '11920078', '13059333', '11873671']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7828746141989475
- 35 USC 102 Novelty (BERT): 0.4901592629469911
- Combined Prediction Score: 0.7536030790737519
- Mean Citation Score: 227.750204
- Max Citation Score: 238.44398
- Similarity Product: 181.3335944279933

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

Dataset: test