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 31):
The method of  claim 30 , wherein 1) comprises one or more of the following features:\n the cyanate is KOCN; for 1 mol of the compound of Formula B, 1.0\u02dc1.5 mol of cyanate is used, and the aqueous cyanate solution is obtained by dissolving 1.0\u02dc1.5 mol of cyanate in water, wherein the volume ratio of water to the compound of Formula B is 2.0\u02dc3.0; the compound of Formula B is added first to water, then acetic acid is added, and the mixture is stirred at 5\u02dc15\u00b0 C.; for 1 mol of the compound of Formula B, 1.0\u02dc1.5 mol of acetic acid is used, and the volume ratio of water to the compound of Formula B is 30\u02dc40; the aqueous cyanate solution is added dropwise to a mixed liquid of the compound of Formula B, acetic acid and water, and the mixture is stirred until the reaction is complete; the aqueous inorganic base solution is an aqueous solution of KOH and/or NaOH; for 1 mol of the compound of Formula B, the amount of the inorganic base is 7\u02dc8 mol, and the aqueous inorganic base solution is prepared by dissolving the inorganic base in water, wherein the volume ratio of water to the compound of Formula B is 2\u02dc4; and the aqueous inorganic base solution is added below 0\u00b0 C., then the mixture is stirred at 10\u02dc25\u00b0 C. until the reaction is complete.

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): 0.7825087454286361
- 35 USC 102 Novelty (BERT): 0.4924987592747997
- Combined Prediction Score: 0.7535077468132525
- Mean Citation Score: 227.750204
- Max Citation Score: 238.44398
- Similarity Product: 175.9521378590918

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

Dataset: test