edit security
set zones security-zone trust address-book address accessvsphere 172.16.254.112/32
exit

edit security policies from-zone untrust to-zone trust
set policy vspherepolicy match source-address any destination-address [ accessvsphere ] application any
set policy vspherepolicy then permit
exit

edit security nat destination
set pool dst-nat-pool-vsphere address 172.16.254.112 port 443
set rule-set rs1 from zone untrust
set rule-set rs1 rule myrule1 match destination-address 1.1.1.2
set rule-set rs1 rule myrule1 match destination-port 443
set rule-set rs1 rule myrule1 then destination-nat pool dst-nat-pool-vsphere
exit

edit security nat
set proxy-arp interface ge-0/0/0.0 address 1.1.1.2