Pfizer Corporation

Cultor Corporation

Michael E Hendrick

Thomas M Brennan

Robert A Reimer

There is disclosed a low calorie fat substitute comprising an outer coating of a digestible fat surrounding an inner core of a low caloric or non-caloric material.

Low calorie fat substitute

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is methyl, ethyl, n-propyl or isopropyl; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butylcarbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## where at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, X is O, S, SO, SO.sub.2 C.dbd.O or CHOH; m is zero or 1-4, n and p are each zero, 1, 2 or 3 where the sum of n+p is not greater than 3 and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six, and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl they are methyl or ethyl, ##STR3## where one of R.sup.7, R.sup.8, R.sup.9 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms and the sum of the carbon atoms in R.sup.7, R.sup.8 and R.sup.9 is not greater than six, m and q are the same or different and each have the values previously defined for m; ##STR4## where each of R.sup.12 and R.sup.13 are methyl or ethyl, or R.sup.12 is hydrogen and R.sup.13 is alkyl having from one to four carbon atoms, Z is O or NH and t is 1 or 2, ##STR5## where w is 1-4, R.sup.14 and R.sup.16 are each alkyl having from one to four carbon atoms, R.sup.15 is H, OH, methyl or ethyl and the sum of the carbon atoms in R.sup.14, R.sup.15 and R.sup.16 is not greater than six and when both of R.sup.14 and R.sup.15 are alkyl they are methyl or ethyl, and ##STR6## where R.sup.17 and R.sup.19 are alkyl having from one to four carbon atoms, R.sup.18 and R.sup.20 are H or alkyl having one to two carbon atoms, A is OH and B is H, OH or CH.sub.3 and taken together A and B are ##STR7## where the sum of the carbon atoms in R.sup.17, R.sup.18, R.sup.19 and R.sup.20 is not greater than six and when both of R.sup.17 and R.sup.18 or R.sup.19 and R.sup.20 are alkyl they are methyl or ethyl; said amides are potent sweeteners having advantages over the prior art, edible compositions containing them, methods for their use in edible compositions and novel amine and amide intermediates useful in their production.

Branched amides of L-aspartyl-D-amino acid dipeptides

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is methyl, hydroxymethyl, ethyl, n-propyl or isopropyl; R is ##STR2## where at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six; and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl, they are methyl or ethyl. Said amides are potent sweeteners having advantages over the prior art, edible compositions containing them, methods for their use in edible compositions and novel amine and amide intermediates useful in their production.

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is methyl, ethyl, n-propyl or isopropyl; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butylcarbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## where at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, X is O, S, SO, SO.sub.2, C.dbd.O or CHOH; m is zero or 1-4, n and p are each zero, 1, 2 or 3 where the sum of n+p is not greater than 3 and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six, and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl they are methyl or ethyl, ##STR3## where one of R.sup.7, R.sup.8, R.sup.9 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms and the sum of the carbon atoms in R.sup.7, R.sup.8 and R.sup.9 is not greater than six, m and q are the same or different and each have the values previously defined for m; ##STR4## where each of R.sup.12 and R.sup.13 are methyl or ethyl, or R.sup.12 is hydrogen and R.sup.13 is alkyl having from one to four carbon atoms, Z is O or NH and t is 1 or 2, ##STR5## where w is 1-4, R.sup.14 and R.sup.16 are each alkyl having from one to four carbon atoms, R.sup.15 is H, OH, methyl or ethyl and the sum of the carbon atoms in R.sup.14, R.sup.15 and R.sup.16 is not greater than six and when both of R.sup.14 and R.sup.15 are alkyl they are methyl or ethyl, and ##STR6## where R.sup.17 and R.sup.19 are alkyl having from one to four carbon atoms, R.sup.18 and R.sup.20 are H or alkyl having one to two carbon atoms, A is OH and B is H, OH or CH.sub.3 and taken together A and B are ##STR7## where the sum of the carbon atoms in R.sup.17, R.sup.18, R.sup.19 and R.sup.20 is not greater than six and when both of R.sup.17 and R.sup.18 or R.sup.19 and R.sup.20 are alkyl they are methyl or ethyl; said amides are potent sweetners having advantages over the prior art, edible compositions containing them, methods for their use in edible compositions and novel amine and amide intermediates useful in their production.

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is methyl, ethyl, n-propyl or isopropyl; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butylcarbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## where at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, X is O, S, SO, SO.sub.2, C.dbd.O or CHOH; m is zero or 1-4, n and p are each zero, 1, 2 or 3 where the sum of n+p is not greater than 3 and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six, and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl they are methyl or ethyl, ##STR3## where one of R.sup.7, R.sup.8, R.sup.9 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms and the sum of the carbon atoms in R.sup.7, R.sup.8 and R.sup.9 is not greater than six, m and q are the same or different and each have the values previously defined for m; ##STR4## where each of R.sup.12 and R.sup.13 are methyl or ethyl, or R.sup.12 is hydrogen and R.sup.13 is alkyl having from one to four carbon atoms, Z is O or NH and t is 1 or 2, ##STR5## where w is 1-4, R.sup.14 and R.sup.16 are each alkyl having from one to four carbon atoms, R.sup.15 is H, OH, methyl or ethyl and the sum of the carbon atoms in R.sup.14, R.sup.15 and R.sup.16 is not greater than six and when both of R.sup.14 and R.sup.15 are alkyl they are methyl or ethyl, and where R.sup.17 and R.sup.19 are alkyl having from one to four carbon atoms, R.sup.18 and R.sup.20 are H or alkyl having one to two carbon atoms, A is OH and B is H, OH or CH.sub.3 and taken together A and B are ##STR6## where the sum of the carbon atoms in R.sup.17, R.sup.18, R.sup.19 and R.sup.20 is not greater than six and when both of R.sup.17 and R.sup.18 or R.sup.19 and R.sup.20 are alkyl they are methyl or ethyl;

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is CH.sub.2 OH or CH.sub.2 OCH.sub.3 ; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butylcarbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## where at least one of R.sup.3, F.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, X is O, S, SO, SO.sub.2, C.dbd.O or CHOH; m is zero or 1-4, n and p are each zero, 1, 2 or 3 where the sum of n+p is not greater than 3 and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six, and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl they are methyl or ethyl, ##STR3## where one of R.sup.7, R.sup.8, R.sup.9 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms and the sum of the carbon atoms in R.sup.7, R.sup.8 and R.sup.9 is not greater than six, m and q are the same or different and each have the values previously defined for m; ##STR4## where each of R.sup.12 and R.sup.13 are methyl or ethyl, or R.sup.12 is hydrogen and R.sup.13 is alkyl having from one to four carbon atoms, Z is O or NH and t is 1 or 2, ##STR5## where w is 1-4, R.sup.14 and R.sup.16 are each alkyl having from one to four carbon atoms, R.sup.15 is H, OH, methyl or ethyl and the sum of the carbon atoms in R.sup.14, R.sup.15 and R.sup.16 is not greater than six and when both of R.sup.14 and R.sup.15 are alkyl they are methyl or ethyl, and ##STR6## where R.sup.17 and R.sup.19 are alkyl having from one to four carbon atoms, R.sup.18 and R.sup.20 are H or alkyl having one to two carbon atoms, A is OH and B is H, OH or CH.sub.3 and taken together A and B are ##STR7## where the sum of the carbon atoms in R.sup.17, R.sup.18, R.sup.19 and R.sup.20 is not greater than six and when both of R.sup.17 and R.sup.18 or R.sup.19 and R.sup.20 are alkyl they are methyl or ethyl;

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is CH.sub.2 OH or CH.sub.2 OCH.sub.3 ; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butylcarbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## where at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, X is O, S, SO, SO.sub.2, C.dbd.O or CHOH; m is zero or 1-4, n and p are each zero, 1, 2 or 3 where the sum of n+p is not greater than 3 and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six, and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl they are methyl or ethyl, ##STR3## where one of R.sup.7, R.sup.8, R.sup.9 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms and the sum of the carbon atoms in R.sup.7, R.sup.8 and R.sup.9 is not greater than six, m and q are the same or different and each have the values previously defined for m; ##STR4## where each of R.sup.12 and R.sup.13 are methyl or ethyl, or R.sup.12 is hydrogen and R.sup.13 is alkyl having from one to four carbon atoms, Z is O or NH and t is 1 or 2, ##STR5## where W is 1-4, R.sup.14 and R.sup.16 are each alkyl having from one to four carbon atoms, R.sup.15 is H, OH, methyl or ethyl and the sum of the carbon atoms in R.sup.14, R.sup.15 and R.sup.16 is not greater than six and when both of R.sup.14 and R.sup.15 are alkyl they are methyl or ethyl, and ##STR6## where R.sup.17 and R.sup.19 are alkyl having from one to four carbon atoms, R.sup.18 and R.sup.20 are H or alkyl having one to two carbon atoms, A is OH and B is H, OH or CH.sub.3 and taken together A and B are ##STR7## where the sum of the carbon atoms in R.sup.17, R.sup.18, R.sup.19 and R.sup.20 is not greater than six and when both of R.sup.17 and R.sup.18 or R.sup.19 and R.sup.20 are alkyl they are methyl or ethyl;

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is methyl, ethyl, n-propyl or isopropyl; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butylcarbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## said amides are potent sweeteners having advantages over the prior art, edible compositions containing them, methods for their use in edible compositions and novel amine and amide intermediates useful in their production.

Branched amides of L-aspartyl-d-amino acid dipeptides

Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is CH.sub.2 OH or CH.sub.2 OCH.sub.3 ; R is a branched member selected from the group consisting of fenchyl, diisopropylcarbinyl, d-methyl-t-butylcarbinyl, d-ethyl-t-butylcarbinyl, di-t-butyl-carbinyl, 2-methylthio-2,4-dimethylpentan-3-yl, ##STR2## said amides are potent sweeteners having advantages over the prior art, edible compositions containing them, methods for their use in edible compositions and novel amide intermediates useful in their production.

Growing community of inventors

Groton, CT, United States of America

Michael E Hendrick